Perhaps you should try some spelling variations:
nguoi ban » nguoi san, nguoi dan, nguoi ba
cap nguoi » ca nguoi, gap nguoi, giap nguoi
ban hang » ngan hang
hieu ve » hieu va, hieu van
hang di » hang doi, hang vi, hang dien
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
ve cap » ve cac, le cap, ve cai
su cac » su cao, su can, eu cac
di cua » dai cua, doi cua, de cua
su sac » su sach, su xac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sac) or (((su cac) OR (tu cac)))) ky lang xa hoi. hieu ve cap nguoi ban hang di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (((su cac) OR (tu cac)))) ky lang xa hoi. hieu ve cap nguoi ban hang di cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) or (((su cac) OR (tu cac)))) ky lang xa hoi. hieu ve cap nguoi ban hang di cua tre*".