Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
cham hoi » cham voi, cham h'roi, pham hoai
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
tang xa » trang xa, tang ma, lang xa
y tang » ky tang, 6 tang, 7 tang
cam lo » nam lo, cam ly
cam o » cham o, ca o, tam o

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y tang xa hoi. hieu ve ((cham hoi) or (((cam lo) or (cam o)))) va thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y tang xa hoi. hieu ve ((cham hoi) OR (((cam lo) OR (cam o)))) va thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach y tang xa hoi. hieu ve ((cham hoi) or (((cam lo) or (cam o)))) va thanh vai cua tre*.