Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
cua tinh » va tinh, ha tinh, hoa tinh
cua sinh » hoa sinh, va sinh
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
va tong » va tuong, va trong, va cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: moc ((cua tinh) or (cua sinh)) - canh trinh ((va tong) OR (va thong)) cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: moc ((cua tinh) OR (cua sinh)) - canh trinh ((va tong) OR (va thong)) cong dan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "moc ((cua tinh) or (cua sinh)) - canh trinh ((va tong) OR (va thong)) cong dan than cau".
• Adding a wildcard symbol may retrieve word variants: moc ((cua tinh) or (cua sinh)) - canh trinh ((va tong) OR (va thong)) cong dan than cau*.