Perhaps you should try some spelling variations:
thanh loi » thanh hoa, thanh hai, thanh lap
nam thuc » nam thuoc, am thuc, nam thu
hieu van » hieu va, thien van, hieu ve
hanh doi » thanh doi, hanh noi, hang doi
thuc va » thuc vat, thuc dan, thuc day
te sach » toc sach
sach ly » sach y, sach lo, sach ty
nang ma » tang ma, sang ma, nang cao
ly nang » ky nang, ly hang, ly vang
cuu tre » cua tre, cau tren, cau treo
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: te sach ly nang ma hoi. ((hieu van) or (lieu va)) nam thuc va ((hanh doi) or (thanh loi)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ly nang ma hoi. ((hieu van) OR (lieu va)) nam thuc va ((hanh doi) OR (thanh loi)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sach ly nang ma hoi. ((hieu van) or (lieu va)) nam thuc va ((hanh doi) or (thanh loi)) cuu tre*.