Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hang doanh » hanh doanh, nhung doanh, van doanh
doanh cua » doanh luan
cua thong » cua thuong, cua khong, cua tong
theo kha » theo phap, thao khoa, theo chu
kha nang » phap nang, ky nang, ki nang
tap toan » tap doan, tap quan, bai toan
tam than » ban than

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo kha nang - hang doanh cua thong cong ((tap toan) or (tam than)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo kha nang - hang doanh cua thong cong ((tap toan) OR (tam than)) tap.
• Adding a wildcard symbol may retrieve word variants: theo kha nang - hang doanh cua thong cong ((tap toan) or (tam than)) tap*.