Perhaps you should try some spelling variations:
hanh tran » hanh trang, thanh tran, hanh tram
theo chu » theo chieu, cho chu, chao chu
tran van » luan van
van dung » van dong, xay dung, tin dung
cong van » cong vang, cong san, song van
cong tac » cong ty
toan tap » toan ban
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chi) or (theo chu)) xanh - hanh tran van dung ((cong van) or (cong tac)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chi) OR (theo chu)) xanh - hanh tran van dung ((cong van) OR (cong tac)) toan tap.
• Adding a wildcard symbol may retrieve word variants: ((doi chi) or (theo chu)) xanh - hanh tran van dung ((cong van) or (cong tac)) toan tap*.