Perhaps you should try some spelling variations:
bach dan » bach dang, bac dan, bach van
dan nang » da nang, van nang, dai nang
su triet » su viet, ve triet
ban hang » ngan hang
tu bach » vu bach, tu cach, tu bac
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
su tien » su kien, su hien, tu tieng
ve cam » ve cham, ve cac, va cam

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: tu bach dan nang xa hoi. hieu ve cam xuc ((ban hanh) OR (ban hang)) vi ((su triet) OR (su tien))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu bach dan nang xa hoi. hieu ve cam xuc ((ban hanh) or (ban hang)) vi ((su triet) OR (su tien))~".
• Adding a wildcard symbol may retrieve word variants: tu bach dan nang xa hoi. hieu ve cam xuc ((ban hanh) or (ban hang)) vi ((su triet) OR (su tien))*.