Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, lanh tranh
hanh trang » thanh trung, canh tranh, hanh trinh
tieu nang » tiem nang, lieu nang, sieu nang
nang cong » nang song, dang cong, bang cong
cong dan » cong san, cong tan, huong dan
toan cao » toan ban
toan tap » toan ban

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