Perhaps you should try some spelling variations:
ban thanh » ban hanh
hieu viec » nhieu viec, hieu ve, sieu viet
ban hang » ngan hang
viec cac » vien cac, viec cua, viec lam
vai cua » dai cua, hai cua, lai cua
ky lang » ky nang, ky dang, ky tang
cac xuc » cam xuc, cac nuoc, chat xuc
lang xa » lang ha, dang xay, lang van
su cac » tu cac, su cao, su can

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ky lang xa hoi. hieu viec cac xuc ((ban thanh) OR (ban hang)) ((vai cuu) or (vai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky lang xa hoi. hieu viec cac xuc ((ban thanh) OR (ban hang)) ((vai cuu) OR (vai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac ky lang xa hoi. hieu viec cac xuc ((ban thanh) OR (ban hang)) ((vai cuu) or (vai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: su cac ky lang xa hoi. hieu viec cac xuc ((ban thanh) OR (ban hang)) ((vai cuu) or (vai cua)) tre*.