Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hanh tai » thanh tai, hang tai, han tai
cau treo » cau theo, cau tren, cau triet
so sanh » do sanh
sanh ky » hanh ky, sang ky, nganh ky
nang xa » nang x, lang xa, nang ma
van bac » van bao, van hac, dan bac
duc van » duc va, duc tan, duc manh
tai cau » tai cac, tai cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ky nang xa hoi. thien ((van bac) or (van ban)) duc van hanh tai cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ky nang xa hoi. thien ((van bac) OR (van ban)) duc van hanh tai cau treo.
• Adding a wildcard symbol may retrieve word variants: so sanh ky nang xa hoi. thien ((van bac) or (van ban)) duc van hanh tai cau treo*.