Why do some words not count on Alpha Betty?

HelenN

Frequently when I make words, even with 5 letters, they do not count toward my total words collected.  Why?

StuckInATree

I thought the same for a while but then I read that it depends on the tiles used in the word. For example if a tile you pick is trapped in vines, it won't be counted up until it has been used again once freed. Whereas the tiles with a crown will add +1 to a word, making a 4 letter word count as 5 for example, those come in very useful in times of need!

Emily_Smith_Wall

I thought the same for a while but then I read that it depends on the tiles used in the word. For example if a tile you pick is trapped in vines, it won't be counted up until it has been used again once freed. Whereas the tiles with a crown will add +1 to a word, making a 4 letter word count as 5 for example, those come in very useful in times of need!

Where did you find a place to read any rules on this?