Perhaps you should try some spelling variations:
hien thanh » thien thanh, hien hanh, tien thanh
hung cong » nhung cong, hung cuong, phung cong
tuan thu » toan thuc, van thu
cong tan » cong tac, cong san, cong thanh
tan khan » tan khang, tan nhan, toan khoan
khan cap » khan ap, than cap, khoan cam
luan » quan, lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien thanh - tinh ((tuan thu) or (luan thiet)) hung cong tan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien thanh - tinh ((tuan thu) OR (luan thiet)) hung cong tan khan cap.
• Adding a wildcard symbol may retrieve word variants: hoc hien thanh - tinh ((tuan thu) or (luan thiet)) hung cong tan khan cap*.