Perhaps you should try some spelling variations:
thanh du » thanh de, thanh do, thanh tu
va thanh » gia thanh, ban thanh, va tinh
so sanh » do sanh
xang xa » lang xa, ang xa, dang xay
mang xa » lang xa, mang may, dang xay
hieu ve » hieu va, hieu van
sanh ty » sach ty, canh tay
cac tuc » cac toc, cac tac, cac nuoc
cac tu » cac thu, cach tu, cac du
du cua » duy cua, dau cua, dum cua
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: so sanh ty ((xang xa) or (mang xa)) hoi. hieu ve ((cac tuc) OR (cac tu)) va thanh du cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ty ((xang xa) OR (mang xa)) hoi. hieu ve ((cac tuc) OR (cac tu)) va thanh du cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh ty ((xang xa) or (mang xa)) hoi. hieu ve ((cac tuc) OR (cac tu)) va thanh du cua te".
• Adding a wildcard symbol may retrieve word variants: so sanh ty ((xang xa) or (mang xa)) hoi. hieu ve ((cac tuc) OR (cac tu)) va thanh du cua te*.