Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
kieu tinh » trieu tinh, diep tinh, bien tinh
lieu tinh » trieu tinh, diep tinh, bien tinh
hanh cong » thanh cong, hang cong, hanh dong
han cong » phan cong, hang cong, han tong
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((kieu tinh) or (lieu tinh)) - canh tranh luan ((han cong) or (hanh cong)) dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((kieu tinh) OR (lieu tinh)) - canh tranh luan ((han cong) OR (hanh cong)) dan chan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((kieu tinh) or (lieu tinh)) - canh tranh luan ((han cong) or (hanh cong)) dan chan cau*.