Perhaps you should try some spelling variations:
chuong cao » cuong cac, luong cao, duong cao
truong cao » truong dai
doi chieu » doc hieu, doi chi, mot chieu
dang cong » dung cong
ho chieu » theo chieu, hoc thieu, mot chieu
cong tcc » cong tac, cong thuc, cong ty
tcc than » tcc thanh, tich than, tac thanh
than cap » khan cap, thanh lap, thanh 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) or (doi chieu)) sach - thanh ((chuong cao) OR (truong cao)) dang cong tcc than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sach - thanh ((chuong cao) OR (truong cao)) dang cong tcc than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chieu)) sach - thanh ((chuong cao) OR (truong cao)) dang cong tcc than cap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) sach - thanh ((chuong cao) OR (truong cao)) dang cong tcc than cap*.