Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
cham luc » cham soc, nhan luc, chat lua
cham cuu » cap cuu, chat cua
van hanh » van thanh, ban hanh, van anh
hanh di » hanh vi, hanh de, hang di
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
tu dan » tuc dan, tu ban, cu dan
dan ky » van ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu dan ky lang ha noi. lieu va ((cham luc) OR (cham cuu)) van hanh di ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu dan ky lang ha noi. lieu va ((cham luc) OR (cham cuu)) van hanh di ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu dan ky lang ha noi. lieu va ((cham luc) OR (cham cuu)) van hanh di ((cua triet) or (va triet))".
• Adding a wildcard symbol may retrieve word variants: tu dan ky lang ha noi. lieu va ((cham luc) OR (cham cuu)) van hanh di ((cua triet) or (va triet))*.