itch.io

I am glad i could help out!
Also thanks for adding those few remaining recipes I revealed to the Document. (I have now also removed these recipes in my comment, since you now added them to your Google Doc.)

Massive Update:
I found out how to craft all remaining unknown recipes! (It turns out that it is pretty easy to find them if you look into the downloadable Game-Apk...)
To find the game-files that contains all item names and their categories, or all recipe combinations, do the following:
1. Download the apk, rename the apk-file to nameOfDownloadedFile.zip
2. Extract the zip file, then search for files named
2.1 "8517d4dbd3ee8d9429c84bb344525a3a" (recipe combinations) or 
2.2 "f6398a8013e21b54c897657df7f05ba6" (item names & categories)
3. Open files with a text Editor -> See the Information you need.
Can't find the files? Read this for another way to find the files: https://pastebin.com/bwcmNHBC

If you just want to know all recipes without doing the above, there is this Google doc: https://docs.google.com/document/d/1KurI2zalcFYksr7tXuBF7Jo8wF-YJaRT5klDi3w0H00 (made by https://itch.io/profile/chlu6207 )
Or this more updated Doc, which now has every currently possible recipe: https://docs.google.com/document/d/10Vo0izrtJP-SQywkmRK9i0JNGPdGkqBF8mNHzLwKt0c (made by https://itch.io/profile/elementallover )
Otherwise, if you want to see what Objects are in which Category, there is this pastebin: https://pastebin.com/Ugxcm72s
Since the above Google Docs have every possible recipe, i will only mention the Impossible Recipes here (found with the help of the game files):
Spear = Stick + Clay -> Impossible to unlock in the Compendium since that always crafts into Bowl & Chopsticks
Impossible because of missing Category:

• Reed = Flower + [Wood] (there is no [Wood]-Category! Potentially it was meant to use [Botany]?)
• Earth God Statue = Statue + [Stone] (there is no [Stone]-Category! Potentially it was meant to use [Earthen]?)
• Electric God Statue = Statue + [Electricity] (there is no [Electricity]-Category! Potentially it was meant to use [Electric]?)
• Nature God Statue = Statue + [Wood] -> Impossible to craft, see Reed.
• Impossible because of Reed: Brown Dye = Mortar & Pestle + Reed; Brown Flag = Flag + Brown; Potion of Toughness = Brewery + Reed; Refreshing Potion of Toughness = Potion of Toughness + Ice

I am guessing that this mistake of using the incorrect names for these Combinations was made because of confusion of the game logic between this game and their other game "Kraft and Slash"?

Alternativly, if you look in the game files you can see that every item has a "categoryTrait" and an "eleTrait". In "eleTrait" there are Stone, Wood and Electricity, so maybe the mistake happened because of this?

Hopefully we can get at least one more update to fix the impossible recipes?

Update: Previously (on September, the 10th), I wrote here how to craft some of the recipes.
I have since removed this comment since i wrote an updated version of this up above.