Perhaps you should try some spelling variations:
hoc thieu » toc thieu
van doanh » toan doanh, van dong, van thanh
doanh cua » doanh luan
trong dan » trong dang, trong tan, trong ban
trong san » trong cac, cong san, dong san
cua dung » cua dang, cua dong, qua dung
ca cau » cua cau, cac cau, can 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) OR (hoc hien)) xanh - van doanh cua dung ((trong dan) or (trong san)) ca cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (hoc hien)) xanh - van doanh cua dung ((trong dan) OR (trong san)) ca cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) OR (hoc hien)) xanh - van doanh cua dung ((trong dan) or (trong san)) ca cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) OR (hoc hien)) xanh - van doanh cua dung ((trong dan) or (trong san)) ca cau*.