Perhaps you should try some spelling variations:
hanh tung » thanh tung, manh tung, hanh dung
dung cong » dung trong
ho trieu » mot trieu, 25 trieu, 30 trieu
anh tang » anh bang, anh dang, anh nang
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
tan van » tran van, tang van, luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho trieu tinh - ((hanh tung) or (anh tang)) cua dung cong tan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho trieu tinh - ((hanh tung) OR (anh tang)) cua dung cong tan van ban.
• Adding a wildcard symbol may retrieve word variants: ho trieu tinh - ((hanh tung) or (anh tang)) cua dung cong tan van ban*.