Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
hoc tieng » hoc hien
tieng han » tieng anh
doanh cua » doanh luan
cua thong » cua thuong, cua khong, cua tong
cong van » cong vang, song van, cong tan
cong san » cong tac
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc tieng han - hanh doanh cua thong ((cong van) or (cong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tieng han - hanh doanh cua thong ((cong van) OR (cong san)) toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc tieng han - hanh doanh cua thong ((cong van) or (cong san)) toan cao*.