Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh di » thanh doi, thanh de, thanh do
lam thuc » lam thuoc, am thuc, nam thuc
thuc van » thuc vat, thuc dan, thuc va
te sach » toc sach
xang xa » mang xa, ang xa, dang xay
cua tre » cuu tre, cua triet, dua tren
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
sach ty » sach y, sach tu, sach thu
va lam » van lam, va lap
cua te » cua tu

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 ty ((xang xa) OR (lang xa)) hoi. hieu va lam thuc van thanh di ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((xang xa) OR (lang xa)) hoi. hieu va lam thuc van thanh di ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((xang xa) OR (lang xa)) hoi. hieu va lam thuc van thanh di ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((xang xa) OR (lang xa)) hoi. hieu va lam thuc van thanh di ((cua tre) or (cua te))*.