Perhaps you should try some spelling variations:
"diplomatie" » "diplomatic", "diplomaticie", "diplomacyie", "diplomie", "diplomtie", "diplomacytie"
"diplomat" » "diplomatic", "diplomacy", "diplom", "diplomt", "diplomacyt"
"diplomats" » "diplomatics", "diplomacys", "diploms", "diplomts", "diplomacyts", "diplomatic", "diplomacy"
"diploma" » "diplom", "diplomacy"

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