Perhaps you should try some spelling variations:
trong phat » trong thuat, trong nha, trong hoat
hanh trong » hanh trang, anh trong, hinh trong
hieu tinh » chieu tinh, lieu tinh, kieu tinh
bien tinh » bi tinh, yen tinh, diep tinh
phat dung » hat dung, pham dung, phan dung
trong tan » trong quan, trong cac, trong ca
tan than » tan thanh, tan tran, ban than
than cap » khan cap, thanh lap, thanh cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu tinh) or (bien tinh)) - hanh trong phat dung trong tan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu tinh) OR (bien tinh)) - hanh trong phat dung trong tan than cap*.