Perhaps you should try some spelling variations:
phong chong » thong thong
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh luan » trinh luan, trinh luat, doanh luan
phong cong » thong cong, chong cong, phong dong
treo chu » theo chu, tho chu
chu nang » chuc nang, chua nang, cuu nang
ban cau » bang cau, ban can, van cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: treo chu nang - hanh tranh luan ((phong cong) or (phong chong)) van ban cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: treo chu nang - hanh tranh luan ((phong cong) OR (phong chong)) van ban cau.
• Adding a wildcard symbol may retrieve word variants: treo chu nang - hanh tranh luan ((phong cong) or (phong chong)) van ban cau*.