Perhaps you should try some spelling variations:
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
than cua » nhan cua, thai cua, ban cua
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, nam duoc
cua tre » cua te, cuu tre, cua triet
su tai » su thi, tu tai
tai ky » thai ky, trai ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su tai ky nang xa hoi. hieu ve ((cam duc) or (pham duc)) ((van hanh) or (ban hanh)) than cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su tai ky nang xa hoi. hieu ve ((cam duc) OR (pham duc)) ((van hanh) OR (ban hanh)) than cua tre.
• Adding a wildcard symbol may retrieve word variants: su tai ky nang xa hoi. hieu ve ((cam duc) or (pham duc)) ((van hanh) or (ban hanh)) than cua tre*.