Perhaps you should try some spelling variations:
theo chinh » thien chinh, te chinh, che chinh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
cua hang » cua dang, cua nhung, cua cong
dan than » dan chan, ban than, van than
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: theo chinh sach - hanh tranh cua hang cong ((dan than) or (van toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chinh sach - hanh tranh cua hang cong ((dan than) OR (van toan)) cau.
• Adding a wildcard symbol may retrieve word variants: theo chinh sach - hanh tranh cua hang cong ((dan than) or (van toan)) cau*.