Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
chieu xanh » chieu sach, chieu sang, chieu tinh
lieu tinh » trieu tinh, diep tinh, bien tinh
luan hang » luan nang, luan han, luan hung
cong san » cong tac
nong dan » cong dan, nong san, nguong dan
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: ho ((chieu xanh) or (lieu tinh)) - canh tranh luan hang ((cong san) or (nong dan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (lieu tinh)) - canh tranh luan hang ((cong san) OR (nong dan)) than cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (lieu tinh)) - canh tranh luan hang ((cong san) or (nong dan)) than cau*.