Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
cong hanh » cong thanh, cong khanh, hong hanh
tac phan » tac pham, tai phan, tac phat
phan cau » phan dau, phan cac, phan tu
ho hieu » ho chieu, hoi hieu, nho 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 lang - thanh cong hanh ((nhung cong) OR (thong cong)) tac phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - thanh cong hanh ((nhung cong) OR (thong cong)) tac phan cau".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh cong hanh ((nhung cong) OR (thong cong)) tac phan cau*.