Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
chieu sang » chieu sach, chieu xanh, hieu lang
thong cong » tong cong, thong thong, phong chong
doanh cua » doanh luan
ho chieu » theo chieu, hoc thieu, doi chieu
tap toan » tap doan, tap quan, bai toan
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: ho chieu sang - chinh doanh cua ((thong cong) or (trong cong)) tap toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - chinh doanh cua ((thong cong) OR (trong cong)) tap toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - chinh doanh cua ((thong cong) or (trong cong)) tap toan cao*.