Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
thanh ve » hanh ve, thanh va, thanh vien
hoc sach » hoc sinh, hoc cac, hoc anh
tu cach » tu cac
thuc va » thuc vat, thuc dan, thuc day
va tham » van tham, va cham, va thanh
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, cua triet
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 cach) or (hoc sach)) ky nang ma hoi. lieu va tham thuc va ((hanh vi) or (thanh ve)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (hoc sach)) ky nang ma hoi. lieu va tham thuc va ((hanh vi) OR (thanh ve)) cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (hoc sach)) ky nang ma hoi. lieu va tham thuc va ((hanh vi) or (thanh ve)) cua tre*.