Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
thanh toan » thanh hoa, thanh san, tinh toan
dung cong » dung trong
ho chieu » hoc thieu, doi chieu, mot chieu
trinh su » trinh tu, trinh san, trinh cau
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan dau » phan tu, hang dau

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 (theo chieu)) tinh - hanh ((trinh su) or (thanh toan)) dung cong dan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) tinh - hanh ((trinh su) OR (thanh toan)) dung cong dan phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) tinh - hanh ((trinh su) or (thanh toan)) dung cong dan phan dau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) tinh - hanh ((trinh su) or (thanh toan)) dung cong dan phan dau*.