Perhaps you should try some spelling variations:
"disease drugs effective." » "disease groups effective.", "disease drugs affecting.", "disease davis effective.", "disease drug effective.", "disease d.g effective.", "disease does effective."
"disease drag effectss." » "disease drag effects.", "disease drug effects.", "disease drag effect.", "disease drug effectss.", "disease d.g effectss.", "disease dna effectss."
"diseases drug effect." » "diseases drug effects.", "diseases drag effect.", "diseases drugs 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 drag effectss.") or ("disease drugs effective."))) or ("diseases drug effect."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("disease drag effectss.") OR ("disease drugs effective."))) OR ("diseases drug effect.")).
• Removing quotes may allow a broader search: (((( disease drag effectss. ) or ( disease drugs effective. ))) or ( diseases drug effect. )).
• Adding a wildcard symbol may retrieve word variants: (((("disease drag effectss.") or ("disease drugs effective."))) or ("diseases drug effect."))*.