Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
qua cam » qua cham, qua cac, qua ca
thuc va » thuc vat, thuc dan, thuc day
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
loc va » hoc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang ma hoi. hieu qua cam ((((duc va) or (thuc va))) or (loc va)) hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ma hoi. hieu qua cam ((((duc va) OR (thuc va))) OR (loc va)) hanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ma hoi. hieu qua cam ((((duc va) or (thuc va))) or (loc va)) hanh tai cua tre*.