Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cam » trinh cam, tranh cac, tranh cai
nang cong » nang song, dang cong, bang cong
dan toan » van toan, dan than, manh toan
van tan » van tuan, van ban, van tai

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 sang - hanh tranh cam nang cong ((dan toan) or (van tan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sang - hanh tranh cam nang cong ((dan toan) OR (van tan)) cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu sang - hanh tranh cam nang cong ((dan toan) or (van tan)) cau*.