Perhaps you should try some spelling variations:
nhan dieu » nhung dieu, nhan vien
phan dieu » phan hieu, han dieu, than dieu
thu xac » thau xay
cac suc » cao suc, cac nuoc, cac cuoc
hieu va » lieu va, hieu qua
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
xac ky » cac ky, sac ky, bac ky
suc va » duc va, tuc va, luc va
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu xac ky nang xa hoi. ((hieu ve) or (hieu va)) cac suc va ((phan dieu) OR (nhan dieu)) cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu xac ky nang xa hoi. ((hieu ve) OR (hieu va)) cac suc va ((phan dieu) OR (nhan dieu)) cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu xac ky nang xa hoi. ((hieu ve) or (hieu va)) cac suc va ((phan dieu) OR (nhan dieu)) cua tu".
• Adding a wildcard symbol may retrieve word variants: thu xac ky nang xa hoi. ((hieu ve) or (hieu va)) cac suc va ((phan dieu) OR (nhan dieu)) cua tu*.