Perhaps you should try some spelling variations:
tran hoang » tran hong, quan hoang, tran quang
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoc hieu » hoc thieu, hoc hien, doc hieu
cong dan » cong san, cong tan, huong dan
chan cau » phan cau, chinh cau, nhanh cau
va hang » van hang, va nang, va hanh
va lang » va nang, hoa lang
can cau » van cau, ban cau, ca cau

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 - tran hoang ((va hang) or (va lang)) cong dan ((chan cau) or (can cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - tran hoang ((va hang) OR (va lang)) cong dan ((chan cau) OR (can cau)).
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - tran hoang ((va hang) or (va lang)) cong dan ((chan cau) or (can cau))*.