Perhaps you should try some spelling variations:
hang doanh » nhung doanh, van doanh, dung doanh
hanh doanh » chinh doanh, doanh doanh, kinh doanh
nhan dang » phan dang, tran dang
theo chu » theo chieu, cho chu, chao chu
chu sang » chu bang, thu sang, chieu sang
nhan dan » phan dau, gian dan, nhan tai
cong dan » cong san, cong tan, huong dan
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sang - ((hanh doanh) OR (hang doanh)) ((nhan dang) OR (nhan dan)) cong dan chan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu sang - ((hanh doanh) or (hang doanh)) ((nhan dang) OR (nhan dan)) cong dan chan cau~".
• Adding a wildcard symbol may retrieve word variants: theo chu sang - ((hanh doanh) or (hang doanh)) ((nhan dang) OR (nhan dan)) cong dan chan cau*.