Perhaps you should try some spelling variations:
qua cham » qua hai, qua cac, va cham
te sach » toc sach
sach va » sach xa, sach ha, sach dao
va nang » van nang, da nang, cam nang
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
cua tre » cuu tre, cua triet, dua tren
soc va » hoc va, loc va, doc va
cua te » cua tu
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: te sach va nang x hoi. hieu qua cham soc va danh vi ((((cua tre) or (dung trong))) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach va nang x hoi. hieu qua cham soc va danh vi ((((cua tre) OR (dung trong))) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: te sach va nang x hoi. hieu qua cham soc va danh vi ((((cua tre) or (dung trong))) or (cua te))*.