Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thanh vai » thanh hai, thanh van, thanh tai
va thanh » gia thanh, ban thanh, va tinh
vai cua » dai cua, hai cua, lai cua
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
ty tang » tay tang, ty hang, ky tang
ma hoi » mai hoi, xa hoi, ma hoa
cam lo » cam ly, cam o
nam lo » nam bo, nam so, nam co

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ((ty tang) OR (ty xang)) ma hoi. hieu ve ((cam lo) or (nam lo)) va thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((ty tang) OR (ty xang)) ma hoi. hieu ve ((cam lo) OR (nam lo)) va thanh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ((ty tang) OR (ty xang)) ma hoi. hieu ve ((cam lo) or (nam lo)) va thanh vai cua tre*".