Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
lang mai » lang dai, lang hai, lang man
hang doi » hang di, hang loi, huong doi
ky lang » ky nang, ky dang, ky tang
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
va cham » va chat, va tham
sach ky » sac ky, sach y, sach ty
doi cua » dai cua, hoi cua
tuc va » thuc va, truc va, tuc xa
xuc va » duc va, luc va, xac va
bac va » ban va, bac ha, bao va
cua te » cua tu

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 lang mai hoi. hieu va cham ((((xuc va) or (bac va))) or (tuc va)) hang doi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky lang mai hoi. hieu va cham ((((xuc va) OR (bac va))) OR (tuc va)) hang doi cua te*.