Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vai » thanh hai, thanh van, thanh tai
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
cham hoi » cham voi, pham hoai, chai thoi
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo
tang ma » mang may, tang van
y tang » ky tang, 6 tang, 7 tang
cam lo » nam lo, cam ly, cam o
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 y tang ma hoi. hieu van ((((cham hoi) or (cham h'roi))) or (cam lo)) ban thanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y tang ma hoi. hieu van ((((cham hoi) OR (cham h'roi))) OR (cam lo)) ban thanh vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: thu sach y tang ma hoi. hieu van ((((cham hoi) or (cham h'roi))) or (cam lo)) ban thanh vai cuu tre*.