Perhaps you should try some spelling variations:
sang mai » sang ma, sang tai, lang mai
chat xuc » chat huu, chao xu, chat cua
chua tre » chua tri, cua tre, chua trieu
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
va chua » vua chua, ca chua, va chu

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 sang mai hoi. hieu ve ((cam xuc) or (chat xuc)) va hanh va chua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky sang mai hoi. hieu ve ((cam xuc) OR (chat xuc)) va hanh va chua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky sang mai hoi. hieu ve ((cam xuc) or (chat xuc)) va hanh va chua tre*.