Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
chieu sach » chinh sach, chiet tach, chieu sang
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh tran » hanh trang, thanh tran, hanh tram
dung cong » dung trong
tran van » luan van
ban than » ban thanh, van thanh, ban hang
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - hanh tran van ((nhung cong) or (dung cong)) ban than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh tran van ((nhung cong) OR (dung cong)) ban than cap.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh tran van ((nhung cong) or (dung cong)) ban than cap*.