Perhaps you should try some spelling variations:
theo chiet » theo chieu, thep thiet
chiet tach » chieu sach
hanh trinh » canh tranh, hanh chinh
quan hang » quan hoang, quan hanh, qua hang
quan lang » quan hoang, gian lang, quan luan
cong san » cong tac
tan ban » toan ban, tang ban, can ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chiet tach - hanh trinh ((quan hang) OR (quan lang)) cong san ((tan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chiet tach - hanh trinh ((quan hang) OR (quan lang)) cong san ((tan ban) OR (van ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chiet tach - hanh trinh ((quan hang) OR (quan lang)) cong san ((tan ban) or (van ban))".
• Adding a wildcard symbol may retrieve word variants: theo chiet tach - hanh trinh ((quan hang) OR (quan lang)) cong san ((tan ban) or (van ban))*.