Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
van chao » van chat, van hao, van cho
va thanh » ban thanh, va tinh, le thanh
khach ky » hanh ky, thanh ky
ban hanh » ban hang
hieu van » hieu va, thien van, lieu va
dang xay » dang van, van xay
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
vai cua » dai cua, hai cua, lai cua
cua tu » cua tuc, cua su, cua cu

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 dang xay hoi. hieu van chao xu ((ban hanh) or (((va thanh) or (gia thanh)))) vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khach ky dang xay hoi. hieu van chao xu ((ban hanh) OR (((va thanh) OR (gia thanh)))) vai cua tu.
• Adding a wildcard symbol may retrieve word variants: vu khach ky dang xay hoi. hieu van chao xu ((ban hanh) or (((va thanh) or (gia thanh)))) vai cua tu*.