Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
ho chieu » theo chieu, hoc thieu, doi chieu
tam dung » tam duong, tac dung, tan dung
cong tac » cong ty
than cap » khan cap, thanh lap, thanh cac
khoan va » doan va, khoa ma, nhan va

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 dung ((cong san) OR (cong tac)) ((than cap) or (khoan va))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung tam dung ((cong san) OR (cong tac)) ((than cap) OR (khoan va)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh trung tam dung ((cong san) OR (cong tac)) ((than cap) or (khoan va))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung tam dung ((cong san) OR (cong tac)) ((than cap) or (khoan va))*.