Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
trung tuan » trung thanh, trung tam, tran tuan
tuan nhung » quan nhung, tuan hung, thuat nhung
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hieu lang » chieu sang, hieu quang, nhieu tang
cong dan » cong san, cong tan, huong dan
than cao » toan cao, thai cao, than sao
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 ((hieu manh) or (hieu lang)) - manh trung tuan nhung cong dan ((than cao) OR (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (hieu lang)) - manh trung tuan nhung cong dan ((than cao) OR (than cap))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) or (hieu lang)) - manh trung tuan nhung cong dan ((than cao) OR (than cap))*".