Perhaps you should try some spelling variations:
dang xay » dang van, van xay
va thanh » gia thanh, ban thanh, va tinh
thanh tu » hanh tu, nhanh tu, thanh tung
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
hieu ve » hieu va, hieu van
cac tuc » cac toc, cac tu, cac tac
ve cac » va cac, vien cac
tuc va » thuc va, truc va, tuc xa
tu cua » hu cua, vu cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty ((xang xa) or (dang xay)) hoi. hieu ve cac tuc va thanh tu cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty ((xang xa) OR (dang xay)) hoi. hieu ve cac tuc va thanh tu cua tu.
• Adding a wildcard symbol may retrieve word variants: so sach ty ((xang xa) or (dang xay)) hoi. hieu ve cac tuc va thanh tu cua tu*.