Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
cong cong » cong dong, trong cong, dung cong
tien anh » tieng anh, tien manh, dien anh
tan toan » tan tran, tap toan, dan toan
van toan » van tuan, van tan, van thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((tien anh) or (hieu manh)) - hanh tranh cua cong cong ((tan toan) OR (van toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((tien anh) OR (hieu manh)) - hanh tranh cua cong cong ((tan toan) OR (van toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((tien anh) or (hieu manh)) - hanh tranh cua cong cong ((tan toan) OR (van toan)) cau".
• Adding a wildcard symbol may retrieve word variants: toc ((tien anh) or (hieu manh)) - hanh tranh cua cong cong ((tan toan) OR (van toan)) cau*.