Perhaps you should try some spelling variations:
kho tang » cao tang
hanh vai » hanh vi, hanh va, hanh tai
ban hanh » ban hang
ky tang » ky nang, ky dang, ky trong
ve chat » va chat, van chat
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
ve cham » va cham, vu cham, ve chim
mai hoi » mai khoi, dai hoi, lai hoi
so ban » sao ban, so bang, co ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ((ky tang) or (kho tang)) mai hoi. hieu ((ve cham) OR (ve chat)) so ban hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ((ky tang) OR (kho tang)) mai hoi. hieu ((ve cham) OR (ve chat)) so ban hanh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ((ky tang) or (kho tang)) mai hoi. hieu ((ve cham) OR (ve chat)) so ban hanh vai cua tre*".