Perhaps you should try some spelling variations:
ban thanh » ban hanh
cua viet » ca viet, hoa viet, cua vat
ban hang » ngan hang
su sach » so sach, vu sach
sach lo » sach dao, sach doi, sach hoi
nang xa » nang x, lang xa, nang ma
lo nang » ho nang, ly nang, loai nang
va cham » va chat, va tham
va cam » va cac, va cao, va cai
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach lo nang xa hoi. hieu ((va cam) OR (va cham)) tuc ((ban thanh) or (ban hang)) vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach lo nang xa hoi. hieu ((va cam) OR (va cham)) tuc ((ban thanh) OR (ban hang)) vi cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach lo nang xa hoi. hieu ((va cam) OR (va cham)) tuc ((ban thanh) or (ban hang)) vi cua viet".
• Adding a wildcard symbol may retrieve word variants: su sach lo nang xa hoi. hieu ((va cam) OR (va cham)) tuc ((ban thanh) or (ban hang)) vi cua viet*.