Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
va thanh » gia thanh, ban thanh, va tinh
nam thuc » nam thuoc, am thuc, nam thu
tu sach » thu sach, te sach, tu cach
vai cua » dai cua, hai cua, lai cua
cam tuc » cam xuc, cam tu, dam thuc
cua tre » cua te, cuu tre, cua triet
dang ma » dang mau, dang mam, dang mat
ky dang » ky nang, ky danh
su sach » so sach, vu sach
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: ((tu sach) or (su sach)) ky dang ma hoi. lieu va ((cam tuc) or (nam thuc)) va thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky dang ma hoi. lieu va ((cam tuc) OR (nam thuc)) va thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky dang ma hoi. lieu va ((cam tuc) or (nam thuc)) va thanh vai cua tre*.