Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
bang cong » dang cong, bang song, hang cong
chu manh » ho manh, chu han, chu van
cua bang » chua bang, cua ban, cua dang
cong dan » cong san, cong tan, huong dan
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((thuc hanh) OR (chu manh)) - hanh tranh cua bang cong dan chan cau~.
• Adding a wildcard symbol may retrieve word variants: cho ((thuc hanh) or (chu manh)) - hanh tranh cua bang cong dan chan cau*.