Perhaps you should try some spelling variations:
"linear mode" » "linear model", "linear models", "bilinear model"
"line models" » "line model", "linear models", "murine models", "line modells", "online models", "lines modells"
"line mode" » "line model", "online mode", "lines model"

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 ("linear mode"))) OR ("line models"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"line mode\") OR (\"linear mode\"))) or (\"line models\"))*".
• Removing quotes may allow a broader search: (((( line mode ) OR ( linear mode ))) or ( line models ))*.