Perhaps you should try some spelling variations:
"disease drugs effectss." » "disease drugs effects.", "disease drug effects.", "disease drugs effective.", "disease drug effectss.", "diseases drug effectss.", "disease d.g effectss."
"diseases due effect." » "diseases drug effect.", "diseases diet effect.", "diseases case effect.", "diseases dose effect.", "diseases edge effect.", "diseases age effect."
"diseases dr effect." » "diseases do effect.", "diseases drug effect.", "diseases _ effect.", "diseases gr effect.", "diseases mr effect.", "diseases deer effect."

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("disease drugs effectss.") or ((("diseases dr effect.") or ("diseases due effect."))))~.
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• Removing quotes may allow a broader search: (( disease drugs effectss. ) or ((( diseases dr effect. ) or ( diseases due effect. )))).
• Adding a wildcard symbol may retrieve word variants: (("disease drugs effectss.") or ((("diseases dr effect.") or ("diseases due effect."))))*.