Perhaps you should try some spelling variations:
tranh luan » trinh luan, doanh luan, tang luan
phung cong » nhung cong, phong cong, nhung chong
khia canh » kho canh, thi canh
cong vang » cong lang, cong quang, cong ngang
vang toan » van toan, dang toan, quang toan
khi xanh » thi hanh, thi anh, thi oanh
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: doi ((khi xanh) or (khia canh)) - canh ((tranh luan) OR (trinh luat)) phung cong vang toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((khi xanh) OR (khia canh)) - canh ((tranh luan) OR (trinh luat)) phung cong vang toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((khi xanh) or (khia canh)) - canh ((tranh luan) OR (trinh luat)) phung cong vang toan cau".
• Adding a wildcard symbol may retrieve word variants: doi ((khi xanh) or (khia canh)) - canh ((tranh luan) OR (trinh luat)) phung cong vang toan cau*.