Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cao hoi » cau hoi, cao hoc, tao hoi
hieu ve » hieu va, hieu van
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
hanh di » hanh vi, hanh de, hang di
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
co hoi » co hoc, co loi
ve cam » ve cham, ve cac, va cam
di cua » dai cua, doi cua, de cua

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 ((cao hoi) or (co hoi)). hieu ve cam ((xuc van) or (duc van)) hanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((cao hoi) OR (co hoi)). hieu ve cam ((xuc van) OR (duc van)) hanh di cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((cao hoi) or (co hoi)). hieu ve cam ((xuc van) or (duc van)) hanh di cua triet*.