Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
hieu ve » hieu va, hieu van
cam tuc » cam tu, nam thuc, dam thuc
hanh di » hanh vi, hanh de, hang di
su sac » su sach, su xac
su cac » tu cac, su cao, su can
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sac) or (su cac)) ky nang x hoi. hieu ve ((cam tuc) OR (cam xuc)) van hanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su cac)) ky nang x hoi. hieu ve ((cam tuc) OR (cam xuc)) van hanh di cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) or (su cac)) ky nang x hoi. hieu ve ((cam tuc) OR (cam xuc)) van hanh di cua triet*".