Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
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 chieu xanh - ((hanh tranh) or (hanh trinh)) va nhung cong ((dan than) or (dan ca)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ((hanh tranh) OR (hanh trinh)) va nhung cong ((dan than) OR (dan ca)) cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ((hanh tranh) or (hanh trinh)) va nhung cong ((dan than) or (dan ca)) cau*.