Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
van thanh » ban thanh
trong san » trong cac, cong san, dong san
theo rau » theo dau, theo mau, theo chu
rau sach » cau sach, hau sach, khau sach
van tuan » van quan, van ban, anh tuan
qua dung » quang dung, su dung, qua song
san toan » van toan, dan toan, manh 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: theo rau sach - ((hanh doanh) or (((van thanh) OR (van tuan)))) qua dung trong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo rau sach - ((hanh doanh) OR (((van thanh) OR (van tuan)))) qua dung trong san toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo rau sach - ((hanh doanh) or (((van thanh) OR (van tuan)))) qua dung trong san toan cao*".