Perhaps you should try some spelling variations:
thanh trung » thanh tung
khung cong » nhung cong, khung long, phung cong
doi chieu » doc hieu, doi chi, mot chieu
trung dam » trung tam, trung dai, trong dam
dam khung » dai khung, cam hung, cam nhung
ho chieu » theo chieu, hoc thieu, mot chieu
cong dan » cong san, cong tan, huong dan
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap

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) or (ho chieu)) sach - thanh trung dam khung cong dan ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) sach - thanh trung dam khung cong dan ((than cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) sach - thanh trung dam khung cong dan ((than cau) or (toan cau))*.