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
trung va » truong va, trang va, trung ha
cong tac » cong ty
than cao » toan cao, thai cao, than sao
than cap » khan cap, thanh lap, thanh cac
va tong » va thong, va tuong, va trong

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