Perhaps you should try some spelling variations:
ban thanh » ban hanh
cua viet » ca viet, hoa viet, cua vat
ban hang » ngan hang
va thanh » gia thanh, va tinh, le thanh
va tham » van tham, va cham, va thuat
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
y nang » ky nang, ly nang, v nang
di cua » dai cua, doi cua, de 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 y nang xa hoi. hieu ((va tham) OR (va thanh)) luc ((ban thanh) or (ban hang)) di cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ((va tham) OR (va thanh)) luc ((ban thanh) OR (ban hang)) di cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu ((va tham) OR (va thanh)) luc ((ban thanh) or (ban hang)) di cua viet*".