Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh doanh » hang doanh, chinh doanh, doanh doanh
mot chieu » doi chieu, ho chieu
luan hoan » luan van
luan han » luan phan, luan van, luan san
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: mot chieu tinh - hanh doanh ((luan han) or (luan hoan)) cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mot chieu tinh - hanh doanh ((luan han) OR (luan hoan)) cong dan than cau*.