Perhaps you should try some spelling variations:
thien van » thi van
cau chuc » cau chu, cau phuc, canh chuc
dieu tra » dieu tri, kiem tra
van hanh » van thanh, ban hanh, van anh
chuc van » chu van, chuc va, thuc van
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
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 nang xa hoi. ((hieu ve) OR (thien van)) cau chuc van hanh ((dieu cua) OR (dieu tra)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang xa hoi. ((hieu ve) or (thien van)) cau chuc van hanh ((dieu cua) OR (dieu tra)) tre~".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang xa hoi. ((hieu ve) or (thien van)) cau chuc van hanh ((dieu cua) OR (dieu tra)) tre*.