Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tranh » hanh trinh, hanh trang, lanh tranh
cua nhung » va nhung
theo chi » theo chu, theo chieu, theo nghi
chi lang » thi lan, chi van, hoi lang
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chi lang - ((hanh tranh) or (canh tranh)) cua nhung cong ((dan toan) OR (dan than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chi lang - ((hanh tranh) OR (canh tranh)) cua nhung cong ((dan toan) OR (dan than)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chi lang - ((hanh tranh) or (canh tranh)) cua nhung cong ((dan toan) OR (dan than)) cao".
• Adding a wildcard symbol may retrieve word variants: theo chi lang - ((hanh tranh) or (canh tranh)) cua nhung cong ((dan toan) OR (dan than)) cao*.