Perhaps you should try some spelling variations:
vu khanh » vu thanh, van khanh, duy khanh
khanh ky » hanh ky, thanh ky, khanh ly
hieu van » hieu va, thien van, lieu va
hai truc » dai truc, hai trac, hang truc
ban hanh » ban hang
van hanh » van thanh, van anh, van ban
nang xa » nang x, lang xa, nang ma
van hai » van ha, van chat, van phan
va hanh » va thanh, va danh, dao hanh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu khanh ky nang xa hoi. hieu van hai truc ((((va hanh) OR (ban hanh))) or (van hanh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khanh ky nang xa hoi. hieu van hai truc ((((va hanh) OR (ban hanh))) OR (van hanh)) vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu khanh ky nang xa hoi. hieu van hai truc ((((va hanh) OR (ban hanh))) or (van hanh)) vai cua tre*".