Perhaps you should try some spelling variations:
hanh vai » hanh va, hanh tai, hanh van
cua tre » cua te, cuu tre, cua triet
ky dang » ky nang, ky danh
dang ma » dang mau, dang mam, dang mat
vu cham » va cham, vu kham, tu cham
te sac » te sach, te cac, te san
luc va » duc va, tuc va, loc va
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
ma hoi » mai hoi, xa hoi, ma hoa

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 dang ma hoi. hieu ((va cam) or (vu cham)) 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 dang ma hoi. hieu ((va cam) OR (vu cham)) luc va ((hanh vai) OR (hanh vi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky dang ma hoi. hieu ((va cam) or (vu cham)) luc va ((hanh vai) OR (hanh vi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sac ky dang ma hoi. hieu ((va cam) or (vu cham)) luc va ((hanh vai) OR (hanh vi)) cua tre*.