Perhaps you should try some spelling variations:
va thieu » va thiet, va hieu, va tieu
hanh vai » hanh vi, hanh va, hanh tai
cham xuc » cam xuc, chat xuc, cham soc
sach ky » sac ky, sach y, sach kem
va hanh » van hanh, va thanh, va danh
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
sach ty » sach y, sach tu, sach thu
mai hoi » mai khoi, dai hoi, lai hoi
ma hoi » xa hoi, ma hoa, me hoi
xuc va » duc va, tuc va, luc va
vai va » mai va, dai va, hai va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) or (sach ty)) nang ((ma hoi) or (mai hoi)). hieu vu cham xuc va hanh vai va thieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach ty)) nang ((ma hoi) OR (mai hoi)). hieu vu cham xuc va hanh vai va thieu.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach ty)) nang ((ma hoi) or (mai hoi)). hieu vu cham xuc va hanh vai va thieu*.