Perhaps you should try some spelling variations:
ban thanh » ban hanh
ban hang » ngan hang
bach ky » bac ky
hoa hoi » khoa hoi, hoa hoc, hoa doi
hieu ve » hieu va, hieu van
cac cuc » cac cuoc, cac cua, cac nuoc
do cua » doi cua, co cua, de cua
ve cac » va cac, vien cac
ha hoi » ha noi, xa hoi, va hoi
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: vu bach ky nang ((ha hoi) or (hoa hoi)). hieu ve cac cuc ((ban thanh) or (ban hang)) do cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach ky nang ((ha hoi) OR (hoa hoi)). hieu ve cac cuc ((ban thanh) OR (ban hang)) do cua te.
• Adding a wildcard symbol may retrieve word variants: vu bach ky nang ((ha hoi) or (hoa hoi)). hieu ve cac cuc ((ban thanh) or (ban hang)) do cua te*.