Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
mien bac » vien bach, dien ban, gian bac
vien bac » vien bach, vien cac, tien bac
thue ban » thu ban, thuc ban, thuat ban
chi tro » chieu tro, chi thoi
te sach » toc sach
cho tre » cho thue, khoe tre
dang xa » dang xay, lang xa, dang ha
y dang » ky dang, 2 dang, _ dang

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 dang xa hoi. hieu ((vien bac) OR (mien bac)) thue ban thanh san ((chi tro) or (cho tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y dang xa hoi. hieu ((vien bac) OR (mien bac)) thue ban thanh san ((chi tro) OR (cho tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y dang xa hoi. hieu ((vien bac) OR (mien bac)) thue ban thanh san ((chi tro) or (cho tre))".
• Adding a wildcard symbol may retrieve word variants: te sach y dang xa hoi. hieu ((vien bac) OR (mien bac)) thue ban thanh san ((chi tro) or (cho tre))*.