Perhaps you should try some spelling variations:
ban hanh » ban hang
lang van » dang van, tang van, hoang van
van hanh » van thanh, van anh, van ban
so sach » so sanh, bo sach, co sach
dum cua » duy cua, dam cua, dung cua
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
ve coc » ve cuoc, ve cac, ve co
cua te » cua tu

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

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