Perhaps you should try some spelling variations:
ban thanh » ban hanh
ban hang » ngan hang
cau luc » cau truc, cau phuc
chu tre » cho tre, chu tri, cuu tre
nang xa » nang x, lang xa, nang ma
sach va » sach xa, sach ha, sach dao
sach v » sach y, sach 2, sach vay
ve chu » ve cau, va chu, ve che
va cau » van cau, va cac, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc ((sach v) OR (sach va)) nang xa hoi. lieu va cau luc ((ban thanh) or (ban hang)) ve chu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc ((sach v) OR (sach va)) nang xa hoi. lieu va cau luc ((ban thanh) OR (ban hang)) ve chu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc ((sach v) OR (sach va)) nang xa hoi. lieu va cau luc ((ban thanh) or (ban hang)) ve chu tre".
• Adding a wildcard symbol may retrieve word variants: thuoc ((sach v) OR (sach va)) nang xa hoi. lieu va cau luc ((ban thanh) or (ban hang)) ve chu tre*.