Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
tam thong » tam thuong, tao thong, nam thong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
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: ho chieu sach - thanh trung tam thong ((((cong dong) or (cong tan))) or (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung tam thong ((((cong dong) OR (cong tan))) OR (cong tac)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung tam thong ((((cong dong) or (cong tan))) or (cong tac)) toan cau*.