Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
tang mai » tang ma, tang tai, lang mai
tu sach » thu sach, su sach, te sach
cham lo » cham o, cam lo, cham soc
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
y tang » ky tang, 6 tang, 7 tang
nam lo » nam bo, nam so, nam co
cam o » cham o, cam lo, ca 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 mai hoi. hieu ve ((cham lo) or (((cam o) or (nam lo)))) gia thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y tang mai hoi. hieu ve ((cham lo) OR (((cam o) OR (nam lo)))) gia thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach y tang mai hoi. hieu ve ((cham lo) or (((cam o) or (nam lo)))) gia thanh vai cua tre*.