Perhaps you should try some spelling variations:
"linear mode" » "linear model", "bilinear model", "nonlinear mode"
"linear models" » "linear modells", "bilinear modells", "nonlinear models"
"line models" » "murine models", "linear model", "linear models", "online models", "lines modells", "one models"
"line model" » "linear model", "murine model", "online model", "lines modell", "one model"
"line mode" » "online mode", "lines model", "one 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 ("linear mode"))) OR ((((("line models") OR ("linear models"))) OR ("line model")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"line mode\") or (\"linear mode\"))) or (((((\"line models\") OR (\"linear models\"))) or (\"line model\"))))".
• Removing quotes may allow a broader search: (((( line mode ) or ( linear mode ))) or ((((( line models ) OR ( linear models ))) or ( line model )))).
• Adding a wildcard symbol may retrieve word variants: (((("line mode") or ("linear mode"))) or ((((("line models") OR ("linear models"))) or ("line model"))))*.