Perhaps you should try some spelling variations:
"diseases davis effective." » "diseases drugs effective.", "diseases laws effective.", "diseases tactics effective.", "diseases david effective.", "disease david effective.", "diseases dalit effective."
"disease drugs effects." » "disease drug effects.", "disease d.g effects.", "disease does effects.", "disease xdrug effects.", "disease drugs effective."
"diseases drug effect." » "diseases drug effects.", "diseases drag effect.", "diseases xdrug effects."

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("disease drugs effects.") or ("diseases davis effective."))) or ("diseases drug effect."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("disease drugs effects.") OR ("diseases davis effective."))) OR ("diseases drug effect.")).
• Removing quotes may allow a broader search: (((( disease drugs effects. ) or ( diseases davis effective. ))) or ( diseases drug effect. )).
• Adding a wildcard symbol may retrieve word variants: (((("disease drugs effects.") or ("diseases davis effective."))) or ("diseases drug effect."))*.