Perhaps you should try some spelling variations:
"diplomat" » "diploma", "diplomatie", "diplomacy"
"diplomatic" » "diplomaic", "diplomatieic", "diplomacyic"
"diplomats" » "diplomas", "diplomaties", "diplomacys", "diplomacy"
"diplomacyic" » "diplomacy", "diplomacia"

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 "diplomatic") OR ("diplomats" OR "diplomacyic")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"diplomat\" OR \"diplomatic\") or (\"diplomats\" or \"diplomacyic\"))".
• Removing quotes may allow a broader search: (( diplomat OR diplomatic ) or ( diplomats or diplomacyic )).
• Adding a wildcard symbol may retrieve word variants: (("diplomat" OR "diplomatic") or ("diplomats" or "diplomacyic"))*.