Perhaps you should try some spelling variations:
dao nguoi » cho nguoi
dan nguoi » den nguoi, ban nguoi, dan nuoi
lam nguoi » tay nguoi
sach dao » lanh dao
su sach » so sach, vu sach
dao dao » dao tao, dao do, cao dao
dao dan » dao van, cao dang, dao dong
xay lam » xay lap, cay lam, hay lam

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((( su sach dao dao nguoi ) OR ( su sach dao dan nguoi ))) or ( thu hoach xay lam nguoi ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( su sach dao dao nguoi ) OR ( su sach dao dan nguoi ))) OR ( thu hoach xay lam nguoi )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( su sach dao dao nguoi ) OR ( su sach dao dan nguoi ))) or ( thu hoach xay lam nguoi ))".
• Adding a wildcard symbol may retrieve word variants: (((( su sach dao dao nguoi ) OR ( su sach dao dan nguoi ))) or ( thu hoach xay lam nguoi ))*.