Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
thanh ve » thanh va, thanh vien, thanh van
so sanh » do sanh
nang ma » tang ma, sang ma, nang cao
va tham » van tham, va cham, va thanh
thuc va » thuc vat, thuc dan, thuc day
hanh ve » hanh va, hanh kem
cua tre » cua te, cuu tre, cua triet
sanh y » sinh y, anh y, hanh y
y nang » ky nang, ly nang, v nang
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: so sanh y nang ma hoi. lieu va tham thuc va ((((thanh ve) OR (hanh ve))) or (hanh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh y nang ma hoi. lieu va tham thuc va ((((thanh ve) OR (hanh ve))) OR (hanh vi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh y nang ma hoi. lieu va tham thuc va ((((thanh ve) OR (hanh ve))) or (hanh vi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: so sanh y nang ma hoi. lieu va tham thuc va ((((thanh ve) OR (hanh ve))) or (hanh vi)) cua tre*.