Perhaps you should try some spelling variations:
thuc nguoi » toc nguoi
san hang » san chang, van hang, san sang
ban hang » ngan hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve thuc » va thuc
cua tre » cuu tre, cua triet, dua tren
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
cua te » cua tu

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 ky nang xa hoi. hieu ve thuc nguoi ((san hang) OR (ban hang)) di ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. hieu ve thuc nguoi ((san hang) OR (ban hang)) di ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. hieu ve thuc nguoi ((san hang) OR (ban hang)) di ((cua tre) or (cua te))*".