Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham luc » cham soc, nhan luc, cham cuu
van hanh » van thanh, ban hanh, van ban
hieu va » lieu va, hieu qua
va cham » va chat, va tham
van anh » van thanh, tuan anh, van minh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
vi cua » vai cua, di cua
x hoi » o hoi, x ho, 5 hoi

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 nang ((x hoi) OR (xa hoi)). hieu va cham luc ((van hanh) or (van anh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((x hoi) OR (xa hoi)). hieu va cham luc ((van hanh) OR (van anh)) vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang ((x hoi) OR (xa hoi)). hieu va cham luc ((van hanh) or (van anh)) vi cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((x hoi) OR (xa hoi)). hieu va cham luc ((van hanh) or (van anh)) vi cua triet*.