Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
ky sang » ky nang, ky tang, duy sang
vai cua » dai cua, hai cua, lai cua
ky dang » ky nang, ky danh
lai roi » lai hoi, loi roi
hieu su » hieu sau, tieu su, hieu so
tu san » thu san, tu ban, tu can
luc va » duc va, tuc va, loc va
su cam » su nam, su cao, su can
xuc va » duc va, tuc va, xac va
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: tu san ((ky sang) or (ky dang)) lai roi. hieu su cam ((xuc va) OR (luc va)) hanh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ((ky sang) OR (ky dang)) lai roi. hieu su cam ((xuc va) OR (luc va)) hanh vai cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ((ky sang) or (ky dang)) lai roi. hieu su cam ((xuc va) OR (luc va)) hanh vai cua tu".
• Adding a wildcard symbol may retrieve word variants: tu san ((ky sang) or (ky dang)) lai roi. hieu su cam ((xuc va) OR (luc va)) hanh vai cua tu*.