Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
khach ty » sach ty
va thanh » gia thanh, ban thanh, va tinh
thanh di » thanh doi, thanh de, thanh do
cua viet » ca viet, hoa viet, cua vat
ty nang » ky nang, ty xang, ty hang
cao hoi » cau hoi, co hoi, cao hoc
hieu le » hieu ve, hieu ly, tieu le
hieu he » hieu ve, hiem he, hieu hien
ma thu » va thu
thu va » thuc va, thue va, tu va
di cua » dai cua, doi cua, de cua

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 ty nang cao hoi. ((hieu le) or (hieu he)) ma thu va thanh di cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khach ty nang cao hoi. ((hieu le) OR (hieu he)) ma thu va thanh di cua viet.
• Adding a wildcard symbol may retrieve word variants: vu khach ty nang cao hoi. ((hieu le) or (hieu he)) ma thu va thanh di cua viet*.