Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
dong thanh » truong thanh
hieu lang » chieu sang, hieu quang, nhieu tang
doanh cua » doanh luan
cua thong » cua thuong, cua khong, cua tong
doi hieu » doi chieu, doc hieu, doi hien
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - canh doanh cua thong ((dong thanh) or (cong trinh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - canh doanh cua thong ((dong thanh) OR (cong trinh)) toan ban.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - canh doanh cua thong ((dong thanh) or (cong trinh)) toan ban*.