Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
thanh ve » hanh ve, thanh va, thanh vien
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
va tham » van tham, va cham, va thanh
thuc va » thuc vat, thuc dan, thuc day
cua tre » cuu tre, cua triet, dua tren
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu

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. lieu va tham thuc va ((thanh ve) or (hanh vi)) ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang ma hoi. lieu va tham thuc va ((thanh ve) OR (hanh vi)) ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: so sach ky nang ma hoi. lieu va tham thuc va ((thanh ve) or (hanh vi)) ((cua tre) or (cua te))*.