Perhaps you should try some spelling variations:
diplomat » diplomats, diploma, diplomatic
diplomas » diplomats, diploma, diplomacy
diplomasic » diplomatsic, diplomaic, diplomacyic, diplomatic, diplomatics, diplomatica
diplomes » diplomats, diploma

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: (( diplomat OR ( (diplomas OR diplomes) OR diplom )) OR diplomasic ).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( diplomat or ( (diplomas OR diplomes) or diplom )) or diplomasic )".
• Adding a wildcard symbol may retrieve word variants: (( diplomat or ( (diplomas OR diplomes) or diplom )) or diplomasic )*.