Perhaps you should try some spelling variations:
ban hang » ngan hang
tien cua » trien cua, tiep cua, khien cua
dien cua » dieu cua, dien cuc, dien cu
so sanh » do sanh
sanh ky » hanh ky, sang ky, nganh ky
qua cac » cua cac
cac tac » cac toc, cac bac, cac dac
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ky nang x hoi. hieu qua cac tac ((ban hanh) or (ban hang)) ((tien cua) OR (dien cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ky nang x hoi. hieu qua cac tac ((ban hanh) OR (ban hang)) ((tien cua) OR (dien cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh ky nang x hoi. hieu qua cac tac ((ban hanh) or (ban hang)) ((tien cua) OR (dien cua)) tre".
• Adding a wildcard symbol may retrieve word variants: so sanh ky nang x hoi. hieu qua cac tac ((ban hanh) or (ban hang)) ((tien cua) OR (dien cua)) tre*.