Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
dam thuc » am thuc, dan thuc, dai thuc
va thanh » gia thanh, ban thanh, va tinh
nam thuc » nam thuoc, am thuc, nam thu
so sach » so sanh, bo sach, co sach
vai cua » dai cua, hai cua, lai cua
sach ky » sac ky, sach y, sach ty
cam tuc » cam xuc, cam tu, nam truc
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky nang ma hoi. hieu ve ((((cam tuc) or (dam thuc))) or (nam thuc)) va thanh vai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang ma hoi. hieu ve ((((cam tuc) OR (dam thuc))) OR (nam thuc)) va thanh vai cua vat.
• Adding a wildcard symbol may retrieve word variants: so sach ky nang ma hoi. hieu ve ((((cam tuc) or (dam thuc))) or (nam thuc)) va thanh vai cua vat*.