Problem with Vietnamese input method

After the update that said "Improved Vietnamese Telex", typing English while in Vietnamese mode has been a pain in the a** for me. I don't want to switch to English mode just to type some simple word than switch back to Vietnamese. Back then, I could just type like this: "database"

data -> "dât" + abase -> "database" (dataabase -> "database")

but now if if type letter "b" after having typed "a" twice, the word would revert to "dâtb"

dataa -> "data" + b -> "dâtb"

, which is not a normal behavior when compared to the input method on Windows computer. And the suggestion bar is not smart enough to suggest that i use "database".

All in all, I want to know if there is a way to revert to the way Swiftkey handle Vietnamese before, or the dev team some how revert the behavior of the app.