Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
chat xuc » chat huu, chao xu, chat cua
hieu du » hien du, hieu su, hiem du
ky mang » ky nang, ke mang, ky tang
ky dang » ky nang, ky danh
lai hoi » dai hoi, lai hoa, lai roi
vi cua » vai cua, di cua
tu san » thu san, tu ban, tu can
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ((ky mang) OR (ky dang)) lai hoi. hieu du ((chat xuc) or (cam xuc)) van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ((ky mang) OR (ky dang)) lai hoi. hieu du ((chat xuc) OR (cam xuc)) van hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ((ky mang) OR (ky dang)) lai hoi. hieu du ((chat xuc) or (cam xuc)) van hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu san ((ky mang) OR (ky dang)) lai hoi. hieu du ((chat xuc) or (cam xuc)) van hanh vi cua te*.