Perhaps you should try some spelling variations:
doanh nhatn » doanh nhan, danh nhan, doanh ngan
doanh nhat » doanh nhan, dang nhat, danh nhan
hieu lang » chieu sang, hieu quang, nhieu tang
dang cong » dung cong
cong van » cong vang, cong san, song van
ho hieu » ho chieu, hoi hieu, nho hieu
ban cau » bang cau, ban can, van cau

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 ((doanh nhat) or (doanh nhatn)) dang cong van ban cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - doanh ((doanh nhat) OR (doanh nhatn)) dang cong van ban cau*.