Perhaps you should try some spelling variations:
nhan viec » nhan vien, nhan viet, nha viec
thu sac » thu sach, thu san, thu xac
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
hieu va » lieu va, hieu qua
cao duc » dao duc, cao suc, giao duc
va nhan » van nhan, ca nhan, va phan
sac ky » cac ky, sai ky
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 sac ky nang xa hoi. ((hieu ve) OR (hieu va)) cao duc va nhan viec ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky nang xa hoi. ((hieu ve) OR (hieu va)) cao duc va nhan viec ((cua te) OR (cua tu))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sac ky nang xa hoi. ((hieu ve) OR (hieu va)) cao duc va nhan viec ((cua te) or (cua tu))*".