Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
thuc ban » thuoc ban, thuc dan, thu ban
ban hang » ngan hang
hang lai » hang tai, hang hai, hang loi
chau tre » chay tren, chau tho, cho tre
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
va lam » van lam, va lap
va am » va cam

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) or (tu sach)) ky nang xa hoi. lieu ((va am) or (va lam)) thuc ban hang lai chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu khach) OR (tu sach)) ky nang xa hoi. lieu ((va am) OR (va lam)) thuc ban hang lai chau tre.
• Adding a wildcard symbol may retrieve word variants: ((vu khach) or (tu sach)) ky nang xa hoi. lieu ((va am) or (va lam)) thuc ban hang lai chau tre*.