Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
hang cong » dang cong, hang nong, bang cong
van thanh » ban thanh, van tuan
khoan va » doan va, khoa ma, nhan va
cong van » cong vang, cong san, song van
thanh tu » hanh tu, nhanh tu, thanh tung
ho hieu » ho chieu, hoi hieu, nho hieu
hoan va » hoang va, doan va, toan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - doanh ((hoan va) or (khoan va)) hang cong van thanh tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - doanh ((hoan va) OR (khoan va)) hang cong van thanh tu.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - doanh ((hoan va) or (khoan va)) hang cong van thanh tu*.