Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
tranh chap » tranh cua, trinh chat
doi chieu » doc hieu, doi chi, ho chieu
cong cong » cong dong, trong cong, dung cong
tan tranh » tan tran, can tranh, lan tranh
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - ((thanh trung) or (thanh tung)) cua cong cong tan tranh chap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((thanh trung) OR (thanh tung)) cua cong cong tan tranh chap.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((thanh trung) or (thanh tung)) cua cong cong tan tranh chap*.