Perhaps you should try some spelling variations:
thanh huong » thanh hung, thanh cong, anh huong
chieu sach » chinh sach, chiet tach, chieu sang
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
huong va » thuong va, luong va, duong va
cong tan » cong tac, cong san, cong thanh
than cao » toan cao, thai cao, than sao
than cap » khan cap, thanh lap, thanh cac
va dung » van dung, va duong, vat dung

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 huong va dung cong tan ((than cao) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh huong va dung cong tan ((than cao) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh huong va dung cong tan ((than cao) or (than cap))*.