Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chiet tach » chieu sach
khanh luan » khanh thuan, doanh luan, hang luan
phuong san » phuong tran, phuong bang, phuong danh
phuong lan » phuong la, thuong lan, phuong linh
van thong » van thuong, van phong, va thong
toan cau » 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 xanh) or (chiet tach)) - khanh luan van thong ((phuong san) OR (phuong lan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chiet tach)) - khanh luan van thong ((phuong san) OR (phuong lan)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chiet tach)) - khanh luan van thong ((phuong san) OR (phuong lan)) toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chiet tach)) - khanh luan van thong ((phuong san) OR (phuong lan)) toan cau*.