Perhaps you should try some spelling variations:
hanh tran » hanh trang, thanh tran, hanh tram
dang cong » dung cong
30 trieu » 25 trieu
tran van » luan van
van dang » van dong, van dung, van nang
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: 30 trieu tinh - hanh tran van dang cong dan ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: 30 trieu tinh - hanh tran van dang cong dan ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - hanh tran van dang cong dan ((toan cau) or (toan ban))*.