Perhaps you should try some spelling variations:
luan trong » quan trong, luat trong, luan tuong
hanh tang » hanh trang, anh tang, hanh mang
theo thu » theo chu, theo tu, theo tieu
thu sang » thu hang, thu san, thu bang
cong san » cong tac
cong tan » cong tac, cong thanh, cong ty
hang cau » hang dau, hang ca, nhung cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo thu sang - ((hanh tang) or (canh tranh)) luan trong ((cong san) or (cong tan)) hang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo thu sang - ((hanh tang) OR (canh tranh)) luan trong ((cong san) OR (cong tan)) hang cau.
• Adding a wildcard symbol may retrieve word variants: theo thu sang - ((hanh tang) or (canh tranh)) luan trong ((cong san) or (cong tan)) hang cau*.