Perhaps you should try some spelling variations:
"diplomatie" » "diplomatic", "diplomtie"
"diploma" » "diplom"
"diplomats" » "diplomts", "diplomatic"
"diplomacys" » "diplomcys", "diplomacies", "diplomas", "diplomacia"
"diplomacy" » "diplomcy"

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