Perhaps you should try some spelling variations:
"diplomatic" » "diplomtic", "diplomacytic"
"diploma" » "diplom", "diplomacy"
"diplomats" » "diplomts", "diplomacyts", "diplomacy"
"diplomaticos" » "diplomticos", "diplomacyticos", "diplomatics", "diplomatico", "diplomatica"

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