Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu tinh » trieu tinh, lieu tinh, chau tinh
cong thanh » dong thanh, cong trinh, cong tan
tang luan » dung luan
anh tang » anh bang, anh dang, anh nang
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cao » toan ban, toan 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 tinh - anh tang luan van ((((cong dan) OR (cong san))) or (cong thanh)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu tinh - anh tang luan van ((((cong dan) OR (cong san))) OR (cong thanh)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu tinh - anh tang luan van ((((cong dan) OR (cong san))) or (cong thanh)) toan cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu tinh - anh tang luan van ((((cong dan) OR (cong san))) or (cong thanh)) toan cao*.