Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
theo chieu » theo tieu, ho chieu, theo chu
theo yeu » theo tieu, thiet yeu, theo chu
quan ban » quang ban, qua ban, quan van
cong san » cong tac
san tran » tan tran, ban tran, dang tran
tran van » luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (theo yeu)) xanh - hanh trinh ((quan ban) or (cua ban)) cong san tran van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo yeu)) xanh - hanh trinh ((quan ban) OR (cua ban)) cong san tran van.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo yeu)) xanh - hanh trinh ((quan ban) or (cua ban)) cong san tran van*.