Perhaps you should try some spelling variations:
cong khanh » cong thanh, cong khan, cong nhan
nhung cong » dung cong, thong cong, hang cong
cong hanh » cong thanh, hong hanh, song hanh
nho hieu » nha hieu, nho sieu, nhu hieu
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan cau » phan dau, phan cac, phan tu
ho hieu » ho chieu, hoi hieu, co hieu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho hieu) OR (nho hieu)) lang - thanh ((cong hanh) or (cong khanh)) nhung cong tac phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho hieu) OR (nho hieu)) lang - thanh ((cong hanh) OR (cong khanh)) nhung cong tac phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho hieu) OR (nho hieu)) lang - thanh ((cong hanh) or (cong khanh)) nhung cong tac phan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho hieu) OR (nho hieu)) lang - thanh ((cong hanh) or (cong khanh)) nhung cong tac phan cau*.