Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
hieu ve » hieu va, hieu van
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
san ky » sang ky, van ky, ban ky
dan ky » van ky
ve cam » ve cham, ve cac, va cam
x hoi » xa hoi, o hoi, x ho

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 x hoi. hieu ve cam ((xuc van) 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 x hoi. hieu ve cam ((xuc van) OR (duc van)) hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((san ky) or (dan ky)) nang x hoi. hieu ve cam ((xuc van) or (duc van)) hanh vai cua tre*.