Perhaps you should try some spelling variations:
theo lieu » theo tieu, theo chieu, theo yeu
lieu tinh » trieu tinh, diep tinh, bien tinh
hanh tang » hanh trang, anh tang, hanh mang
luan han » luan hoan, luan phan, luan san
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan ban » van 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 lieu tinh - hanh tang ((luan han) or (luan van)) ((cong dan) OR (cong san)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo lieu tinh - hanh tang ((luan han) OR (luan van)) ((cong dan) OR (cong san)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo lieu tinh - hanh tang ((luan han) or (luan van)) ((cong dan) OR (cong san)) toan ban".
• Adding a wildcard symbol may retrieve word variants: theo lieu tinh - hanh tang ((luan han) or (luan van)) ((cong dan) OR (cong san)) toan ban*.