Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
su sach » so sach, vu sach
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
va cach » va cac
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, mang may
so sanh » do sanh
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (so sanh)) va ((nang ma) OR (nang cao)) hoa. lieu va cach thuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sanh)) va ((nang ma) OR (nang cao)) hoa. lieu va cach thuc va hanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sanh)) va ((nang ma) OR (nang cao)) hoa. lieu va cach thuc va hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sanh)) va ((nang ma) OR (nang cao)) hoa. lieu va cach thuc va hanh vi cua tre*.