What is the difference between Nia, Naa, and Tua (and Adunay)

As said in the title. I'm confused about these words. Please let me know how to use them in different situations!

Tua

Tua same as tuo , some replace o with a.

The dictionary, is very helpful, Synonyms of words.  look up true, correct, English to Bisaya translation. 

My fiancee speaks Bisaya,