Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
hieu ve » hieu va, hieu van
hoc can » hoc dan, hoc cao, hoc cac
te dan » te danh, tre dan, ke dan
dan ky » van ky
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te dan ky sang ma hoi. hieu ve cac ((duc va) or (hoc can)) hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te dan ky sang ma hoi. hieu ve cac ((duc va) OR (hoc can)) hanh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: te dan ky sang ma hoi. hieu ve cac ((duc va) or (hoc can)) hanh vi cua triet*.