Perhaps you should try some spelling variations:
pham hoai » pham hoa, pham hoang, pham khoa
thanh vai » thanh hai, thanh van, thanh tai
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
hieu ve » hieu va, hieu van
ky dang » ky nang, ky danh
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo
y tang » ky tang, 6 tang, 7 tang
cam lo » nam lo, cam ly, cam o

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) or (ky dang)) ma hoa. hieu ve ((pham hoai) 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) OR (ky dang)) ma hoa. hieu ve ((pham hoai) OR (cam lo)) ban thanh vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ((y tang) or (ky dang)) ma hoa. hieu ve ((pham hoai) or (cam lo)) ban thanh vai cuu tre*.