Perhaps you should try some spelling variations:
tu sang » thu sang, tu san, tu lang
va hanh » van hanh, va thanh, va danh
vu cham » va cham, vu kham, tu cham
vu chao » vu cao, vu chat, vu cho
sang ky » sang kyo, dang ky, tang ky
lai roi » loi roi
lai hoi » dai hoi, lai hoa, mai hoi
ky tang » ky nang, ky dang, kho tang
vi cua » vai cua, di cua
cua te » cua tu
xu va » xu van, tu va, su va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sang ky tang ((lai hoi) OR (lai roi)). hieu ((vu chao) or (vu cham)) xu va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sang ky tang ((lai hoi) OR (lai roi)). hieu ((vu chao) OR (vu cham)) xu va hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sang ky tang ((lai hoi) OR (lai roi)). hieu ((vu chao) or (vu cham)) xu va hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu sang ky tang ((lai hoi) OR (lai roi)). hieu ((vu chao) or (vu cham)) xu va hanh vi cua te*.