Perhaps you should try some spelling variations:
"resistir" » "resister", "resistiver", "resisting"
"restriktiver" » "restriktive", "restriktiven", "restriktionen"
"restrictive" » "destructive", "restriction", "restrictions"
"resistor" » "resistors", "resist"
"resisted" » "assisted", "resist"

Try widening your search to All Fields.

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: (("resistir" OR ("restriktiver" OR "restrictive")) OR ("resistor" OR "resisted")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"resistir\" or (\"restriktiver\" OR \"restrictive\")) or (\"resistor\" or \"resisted\"))".
• Removing quotes may allow a broader search: (( resistir or ( restriktiver OR restrictive )) or ( resistor or resisted )).
• Adding a wildcard symbol may retrieve word variants: (("resistir" or ("restriktiver" OR "restrictive")) or ("resistor" or "resisted"))*.