Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
thanh tran » thanh trang, thanh toan, thanh tra
doi chieu » doc hieu, doi chi, ho chieu
van phung » van phong, van hung, van chuong
tran van » luan van
cong dan » cong san, cong tan, cong dong
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (theo chieu)) sach - thanh tran van phung ((cong dan) OR (huong dan)) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (theo chieu)) sach - thanh tran van phung ((cong dan) OR (huong dan)) than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (theo chieu)) sach - thanh tran van phung ((cong dan) OR (huong dan)) than cao".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (theo chieu)) sach - thanh tran van phung ((cong dan) OR (huong dan)) than cao*.