Perhaps you should try some spelling variations:
thanh do » thanh pho, thanh hoa, thanh loi
thanh de » hanh de, thanh ve, thanh le
vu sach » vu bach, su sach, vu khach
xang xa » lang xa, mang xa, ang xa
sach ty » sach y, sach tu, sach thu
cua tu » cua tuc, cua su, cua cu
ve coc » ve cuoc, ve cac
ve co » vo co, va co, de co

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: vu sach ty xang xa hoi. hieu ((ve coc) OR (ve co)) duc va ((thanh de) OR (thanh do)) cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty xang xa hoi. hieu ((ve coc) or (ve co)) duc va ((thanh de) OR (thanh do)) cua tu~".
• Adding a wildcard symbol may retrieve word variants: vu sach ty xang xa hoi. hieu ((ve coc) or (ve co)) duc va ((thanh de) OR (thanh do)) cua tu*.