Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
khanh van » thanh van, khanh vinh, hanh va
hieu van » hieu va, thien van, lieu va
hanh van » thanh van, hanh va, hanh san
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
van cam » van nam, van lam, van cau
duc van » duc va, duc manh, duc phan
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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

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