Perhaps you should try some spelling variations:
diplomat » diplomats, diplomatic, diplomatie, diplomt, diplomatst
diplomaticus » diplomatsicus, diplomaticicus, diplomatieicus, diplomticus, diplomatsticus, diplomatics, diplomaticos, diplomaticas
diploma » diplom, diplomats
diplomacy » diplomcy, diplomatscy

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