Perhaps you should try some spelling variations:
sang mai » sang ma, sang tai, lang mai
cham xuc » cam xuc, chat xuc, cham soc
su sach » so sach, vu 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
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
va dinh » van dinh, va kinh, va tinh
hai hoa » thai hoa, dai hoa, lai hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky sang mai hoi. hieu ve cham xuc ((va hanh) or (va dinh)) hai hoa viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky sang mai hoi. hieu ve cham xuc ((va hanh) OR (va dinh)) hai hoa viet.
• Adding a wildcard symbol may retrieve word variants: su sach ky sang mai hoi. hieu ve cham xuc ((va hanh) or (va dinh)) hai hoa viet*.