Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
doanh van » doan van, doanh va, doanh ban
van doanh » toan doanh, van dong, van thanh
hieu van » thien van, lieu va, hieu ve
cac tac » cac toc, cac bac, cac dac
van cua » vang cua, ban cua, dan cua
cac tuc » cac toc, cac tu, cac nuoc
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
te sac » te sach, te cac, te 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: te sac ky lang xa hoi. ((hieu van) OR (hieu va)) ((cac tuc) OR (cac tac)) van doanh van cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky lang xa hoi. ((hieu van) or (hieu va)) ((cac tuc) OR (cac tac)) van doanh van cua triet~".
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. ((hieu van) or (hieu va)) ((cac tuc) OR (cac tac)) van doanh van cua triet*.