Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh thanh, dong doanh
doanh hoan » doanh khoa, doanh nhan, doanh luan
qua trong » quan trong, qua trinh, qua song
ho chieu » theo chieu, hoc thieu, doi chieu
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doc hieu)) tinh - ((doanh doanh) OR (doanh hoan)) qua trong cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doc hieu)) tinh - ((doanh doanh) OR (doanh hoan)) qua trong cong dan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doc hieu)) tinh - ((doanh doanh) OR (doanh hoan)) qua trong cong dan toan tap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doc hieu)) tinh - ((doanh doanh) OR (doanh hoan)) qua trong cong dan toan tap*.