Perhaps you should try some spelling variations:
hanh vai » hanh va, hanh tai, hanh van
cua tre » cua te, cuu tre, cua triet
ky sang » ky nang, ky dang, ky tang
hieu ve » hieu va, hieu van
cam luc » cam xuc, cau luc
te sac » te sach, te cac, te san
luc va » duc va, tuc va, loc va
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky sang ((ma hoa) or (xa hoi)). hieu ve cam luc va ((hanh vai) or (hanh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky sang ((ma hoa) OR (xa hoi)). hieu ve cam luc va ((hanh vai) OR (hanh vi)) cua tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky sang ((ma hoa) or (xa hoi)). hieu ve cam luc va ((hanh vai) or (hanh vi)) cua tre*.