Perhaps you should try some spelling variations:
nhung chong » nhung cong, nhung phong, nhung phuong
tranh luan » trinh luan, trinh luat, doanh luan
hanh tranh » canh tranh, hanh trinh, hanh trang
phung cong » nhung cong, phong cong, dung cong
chau tinh » cuu tinh, ha tinh, cua tinh
chu tinh » chua tinh, cuu tinh, chu tich
van toan » van tuan, van tan, van thanh
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: cho ((chu tinh) OR (chau tinh)) - hanh tranh luan ((phung cong) or (nhung chong)) van toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((chu tinh) OR (chau tinh)) - hanh tranh luan ((phung cong) OR (nhung chong)) van toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho ((chu tinh) OR (chau tinh)) - hanh tranh luan ((phung cong) or (nhung chong)) van toan cau".
• Adding a wildcard symbol may retrieve word variants: cho ((chu tinh) OR (chau tinh)) - hanh tranh luan ((phung cong) or (nhung chong)) van toan cau*.