Perhaps you should try some spelling variations:
can thuc » dan thuc, van thuc, cay thuc
tu sach » thu sach, su sach, tu cach
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
ky lang » ky dang, ky tang, tay lang
te sach » toc sach
ve can » ve canh, ve cac, ve ban
vi cua » vai cua, di cua
ha hoi » hoa hoi, ha noi, xa hoi

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