Perhaps you should try some spelling variations:
def » defi
deaf » leaf, deal, dean
lepard" » leopard"
leonhard" » leonard", bernhard", reinhard"
peppered" » pepper", tempered"
sheppard" » shepherd"

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: "(def or deaf) ((lepard" OR leonhard") or ((peppard" OR peppered") or sheppard")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"(def or deaf) ((lepard\" or leonhard\") or ((peppard\" OR peppered\") or sheppard\"))".
• Removing quotes may allow a broader search: (def or deaf) ((lepard or leonhard ) or ((peppard OR peppered ) or sheppard )).
• Adding a wildcard symbol may retrieve word variants: "(def or deaf) ((lepard" or leonhard") or ((peppard" OR peppered") or sheppard"))*.