Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
khach ky » hanh ky, thanh ky
hieu van » hieu va, thien van, lieu va
ban hang » ngan hang
van cam » van nam, van lam, van cau
va danh » va dan, va hanh, dia danh
va dinh » van dinh, va kinh, va tinh
su tien » su kien, su hien, tu tieng
cam tu » cam thu, nam tu, dam tu
ki su » ky su

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu khach ky nang x ho. hieu van cam tu ((ban hang) or (((va danh) OR (va dinh)))) ki su tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khach ky nang x ho. hieu van cam tu ((ban hang) OR (((va danh) OR (va dinh)))) ki su tien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu khach ky nang x ho. hieu van cam tu ((ban hang) or (((va danh) OR (va dinh)))) ki su tien".
• Adding a wildcard symbol may retrieve word variants: vu khach ky nang x ho. hieu van cam tu ((ban hang) or (((va danh) OR (va dinh)))) ki su tien*.