Perhaps you should try some spelling variations:
"diplomat" » "diplomats", "diplomatic", "diplomatie", "diplomt", "diplomatst"
"diploma" » "diplom", "diplomats"
"diplomacys" » "diplomcys", "diplomatscys", "diplomacies", "diplomats", "diplomas"
"diplomacy" » "diplomcy", "diplomatscy"
"diploms" » "diplomes", "diplomas", "diplom"

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 ("diploms" OR ("diplomacys" OR "diplomacy"))).
• Removing quotes may allow a broader search: (( diplomat or diploma ) or ( diploms or ( diplomacys or diplomacy ))).
• Adding a wildcard symbol may retrieve word variants: (("diplomat" or "diploma") or ("diploms" or ("diplomacys" or "diplomacy")))*.