Perhaps you should try some spelling variations:
chiet tach » chieu sach
nhung cong » dung cong, thong cong, hang cong
thanh chau » thanh cha, thanh cham, thanh chu
cong sang » cong san, cong lang, cong vang
ho chiet » ho chieu, ho thiet, hoc thiet
tran van » luan van
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: ho chiet tach - thanh ((tran van) or (trung quoc)) nhung cong sang ((thanh chau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - thanh ((tran van) OR (trung quoc)) nhung cong sang ((thanh chau) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - thanh ((tran van) or (trung quoc)) nhung cong sang ((thanh chau) or (than cap))*.