Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
vai cua » dai cua, hai cua, lai cua
duc van » duc va, duc tan, duc manh
van cam » van nam, van lam, van cau
nang xa » nang x, lang xa, nang ma
san ky » sang ky, van ky, ban ky
luc va » duc va, tuc va, loc va
dan ky » van ky

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

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