Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung cong » dung cong, thong cong, hang cong
tien manh » tien anh, tien thanh, tieng anh
dien dan » hien dai, vien dai, gian dan
trung va » truong va, trang va, trung ha
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((tien manh) or (dien dan)) - thanh trung va nhung cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tien manh) OR (dien dan)) - thanh trung va nhung cong dan than cao*.