Perhaps you should try some spelling variations:
doanh hoan » doanh doanh, doanh khoa, doanh nhan
canh doanh » hanh doanh, chinh doanh, doanh doanh
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
cua nhung » va nhung
cong van » cong vang, cong san, song van
van chat » cao chat
chat cau » chat cam, chat cao, chat va
ho hieu » ho chieu, hoi hieu, nho hieu

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 - ((canh doanh) or (doanh hoan)) cua nhung cong van chat cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - ((canh doanh) OR (doanh hoan)) cua nhung cong van chat cau.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - ((canh doanh) or (doanh hoan)) cua nhung cong van chat cau*.