Perhaps you should try some spelling variations:
hanh tranh » hanh trinh, hanh trang, lanh tranh
tieu sang » chieu sang, tieu dung, tiem nang
nang cong » nang song, dang cong, bang cong
kha nang » phap nang, ky nang, ki nang
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sang - ((hanh tranh) or (canh tranh)) kha nang cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - ((hanh tranh) OR (canh tranh)) kha nang cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - ((hanh tranh) or (canh tranh)) kha nang cong dan than ban*.