Perhaps you should try some spelling variations:
khien bang » phien ban, khien dong
thanh tran » thanh trang, thanh toan, thanh tra
cong thanh » dong thanh, cong tan, truong thanh
hoc khien » hoc hien, hoc nghien, hoc thieu
tran van » luan van
van hang » van khang, van hoang, van thang
luong va » dung va
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc khien bang - thanh tran van hang ((((cong trinh) or (cong thanh))) or (luong va)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc khien bang - thanh tran van hang ((((cong trinh) OR (cong thanh))) OR (luong va)) toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc khien bang - thanh tran van hang ((((cong trinh) or (cong thanh))) or (luong va)) toan tap*.