Perhaps you should try some spelling variations:
"line modells" » "line models", "eines modells", "line model", "line modellls", "line modelslls", "linear modells"
"lines model" » "line model", "linear model", "line models"
"line mode" » "line model", "line models", "linear mode"

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: (((("line mode") OR ("lines model"))) OR ("line modells")).
• Removing quotes may allow a broader search: (((( line mode ) or ( lines model ))) or ( line modells )).
• Adding a wildcard symbol may retrieve word variants: (((("line mode") or ("lines model"))) or ("line modells"))*.