Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
hanh vai » hanh vi, hanh va, hanh tai
ky sang » ky dang, ky tang, duy sang
vai cua » dai cua, hai cua, lai cua
lai hoi » lai hoa, lai roi, mai hoi
va hanh » van hanh, va thanh, va danh
dai hoi » dai hoc, dai hai, dai moi
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
luc va » duc va, tuc va, loc va
tu sac » tu sach, tu cac, tu san
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 sac ((ky sang) or (ky nang)) ((lai hoi) OR (dai hoi)). hieu vu cham luc va hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ((ky sang) OR (ky nang)) ((lai hoi) OR (dai hoi)). hieu vu cham luc va hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ((ky sang) or (ky nang)) ((lai hoi) OR (dai hoi)). hieu vu cham luc va hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: tu sac ((ky sang) or (ky nang)) ((lai hoi) OR (dai hoi)). hieu vu cham luc va hanh vai cua te*.