Perhaps you should try some spelling variations:
"diplomt" » "diplomat", "diplom", "diplome"
"diplomties" » "diplomaties", "diplomies", "diplomeies", "diplomatics", "diplomacies", "diplomatie"
"diploma" » "diplom", "diplomacy"
"diplomats" » "diplomts", "diplomacyts", "diplomatic", "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: (("diplomt" OR "diploma") OR ("diplomats" OR "diplomties")).
• Removing quotes may allow a broader search: (( diplomt or diploma ) or ( diplomats or diplomties )).
• Adding a wildcard symbol may retrieve word variants: (("diplomt" or "diploma") or ("diplomats" or "diplomties"))*.