Perhaps you should try some spelling variations:
sang mai » sang ma, sang tai, lang mai
cham xuc » cam xuc, chat xuc, cham soc
hanh tai » thanh tai, hang tai, han tai
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
y sang » _ sang, duy sang
xuc va » duc va, tuc va, luc 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) or (su sach)) y sang mai hoi. hieu ve cham xuc va hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) y sang mai hoi. hieu ve cham xuc va hanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) y sang mai hoi. hieu ve cham xuc va hanh tai cua tre*.