Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
trung chap » trung cap, tranh chap, trung phan
trung ha » trung hoc, trung tam, trung cap
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
than tap » toan tap, han tap, phan tap

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 sach - hanh ((trung chap) or (trung ha)) thuong ((cong tan) OR (cong san)) than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh ((trung chap) OR (trung ha)) thuong ((cong tan) OR (cong san)) than tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh ((trung chap) or (trung ha)) thuong ((cong tan) OR (cong san)) than tap".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh ((trung chap) or (trung ha)) thuong ((cong tan) OR (cong san)) than tap*.