Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
canh doanh » hanh doanh, chinh doanh, doanh doanh
sinh sach » chinh sach, sinh san, sang sach
tai nhung » thai nhung, thi nhung, tai hung
cong van » cong vang, cong san, song van
toan cau » toan cao, toan tap, toan tai
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: hoc ((sinh sach) or (sinh vat)) - canh doanh tai nhung cong van ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((sinh sach) OR (sinh vat)) - canh doanh tai nhung cong van ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((sinh sach) or (sinh vat)) - canh doanh tai nhung cong van ((toan cau) or (toan ban))*.