Perhaps you should try some spelling variations:
vat thanh » dat thanh, gat thanh, tat thanh
hieu van » hieu va, thien van, lieu va
lam thuc » lam thuoc, am thuc, nam thuc
thanh di » thanh doi, thanh de, thanh do
te sach » toc sach
xang xa » mang xa, ang xa, dang xay
lang xa » lang ha, dang xay, lang van
van lam » van nam
cua tre » cuu tre, cua triet, dua tren
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 y ((xang xa) or (lang xa)) hoi. hieu van lam thuc vat thanh di ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((xang xa) OR (lang xa)) hoi. hieu van lam thuc vat thanh di ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: te sach y ((xang xa) or (lang xa)) hoi. hieu van lam thuc vat thanh di ((cua tre) or (cua te))*.