Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thanh trung » thanh tung
nhung cong » thong cong, hang cong, nhung don
thieu anh » thien anh, chieu xanh, thien danh
dung cong » dung trong
trung va » truong va, trang va, trung ha
dan than » dan chan, ban than, van than
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: hoc ((thieu anh) or (thien thanh)) - thanh trung va ((nhung cong) or (dung cong)) dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu anh) OR (thien thanh)) - thanh trung va ((nhung cong) OR (dung cong)) dan than cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu anh) or (thien thanh)) - thanh trung va ((nhung cong) or (dung cong)) dan than cap*.