Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
ho chieu » theo chieu, hoc thieu, doi chieu
va duong » van duong, va tuong, va huong
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
thai cao » thoai cac, thuat cao, toan cao
tung va » trung va, tuong va, dung va
tai cao » tao cao, tai sao, tai cac

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