Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
thieu cac » hieu cac, thien cac, hieu ca
doanh cua » doanh luan
trong dan » trong dang, trong san, trong tan
cua dung » cua dang, cua dong, qua dung
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu cac) or (chinh sach)) - canh doanh cua dung trong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu cac) OR (chinh sach)) - canh doanh cua dung trong dan chan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu cac) or (chinh sach)) - canh doanh cua dung trong dan chan cau*.