Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
vu khach » vu khanh, vu khac, vay khach
khach ky » hanh ky, thanh ky
nam thuc » nam thuoc, am thuc, nam thu
thuc ban » thuoc ban, thuc dan, thu ban
thanh di » thanh doi, thanh de, thanh do
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
hieu va » lieu va, hieu qua
di cua » dai cua, doi cua, de 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 nang xa hoi. ((hieu ve) or (hieu va)) nam thuc ban thanh di cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khach ky nang xa hoi. ((hieu ve) OR (hieu va)) nam thuc ban thanh di cua tu.
• Adding a wildcard symbol may retrieve word variants: vu khach ky nang xa hoi. ((hieu ve) or (hieu va)) nam thuc ban thanh di cua tu*.