Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hang tai » hang va, dung tai
nang tai » tang tai, sang tai, nang cao
nang ji » nang si, nang noi, nang tin
hieu ve » hieu va, hieu van
cac tuc » cac toc, cac tu, cac tac
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
tuc va » thuc va, truc va, tuc xa
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
tu sac » tu sach, tu cac, tu san

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 ve cac tuc va ((nang ji) OR (((nang tai) OR (hang tai)))) cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky lang xa hoi. hieu ve cac tuc va ((nang ji) or (((nang tai) OR (hang tai)))) cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky lang xa hoi. hieu ve cac tuc va ((nang ji) or (((nang tai) OR (hang tai)))) cua triet*.