Perhaps you should try some spelling variations:
"diplomat" » "diplomats", "diplomatic", "diplomatie", "diplomt", "diplomatst"
"diplomt" » "diplom", "diplome", "diploms"
"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 "diplomt") OR "diplomcyt") OR "diploma") OR "diplomacy").
• Removing quotes may allow a broader search: (((( diplomat or diplomt ) or diplomcyt ) or diploma ) or diplomacy ).
• Adding a wildcard symbol may retrieve word variants: (((("diplomat" or "diplomt") or "diplomcyt") or "diploma") or "diplomacy")*.