Perhaps you should try some spelling variations:
cuon sach » duong sach, cuoc cach, co sach
pham thuc » phap thuc, pham chuc, nham thuc
thanh vai » thanh hai, thanh van, thanh tai
va thanh » gia thanh, ban thanh, va tinh
cau tren » cu tren, dau tren, ca tren
su sach » so sach, vu sach
xang xa » lang xa, mang xa, ang xa
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap
thuc va » thuc vat, thuc dan, thuc day
vai cau » va cau, van cau, vai cac

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) or (cuon sach)) ty xang xa hoi. hieu va pham thuc va thanh vai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (cuon sach)) ty xang xa hoi. hieu va pham thuc va thanh vai cau tren.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (cuon sach)) ty xang xa hoi. hieu va pham thuc va thanh vai cau tren*.