Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
tranh chap » tranh cua, trinh chat
doi chieu » doc hieu, doi chi, ho chieu
trung nam » trung tam, trong nam, trung cap
nam trong » nam trung, cay trong
cong tan » cong tac, cong san, cong thanh
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: doi chieu sach - thanh trung nam trong cong tan ((tranh chap) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh trung nam trong cong tan ((tranh chap) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh trung nam trong cong tan ((tranh chap) or (than cap))*.