Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
tinh hai » tinh thai, tinh chat, trinh han
vu cham » va cham, vu kham, qua cham
hai cuu » hai cua, hai chu, hai cuc
xuc may » xuc hay, truc may, phuc may
tu cham » toc cham, thi cham
cuu tre » cua tre, cau tren, cau treo
sach ky » sac ky, sach y, sach ty
ve chat » va chat, van chat
tang ma » mang may, tang van
ky tang » ky nang, ky dang, kho tang
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky tang ma hoi. hieu ((ve chat) or (((vu cham) or (tu cham)))) xuc may tinh hai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky tang ma hoi. hieu ((ve chat) OR (((vu cham) OR (tu cham)))) xuc may tinh hai cuu tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ky tang ma hoi. hieu ((ve chat) or (((vu cham) or (tu cham)))) xuc may tinh hai cuu tre*.