Perhaps you should try some spelling variations:
"diseases drugs effectss." » "diseases drug effectss.", "disease drugs effectss.", "disease drug effectss.", "diseases drugs effects.", "diseases drug effects.", "diseases drugs effective."
"diseases dose effect." » "diseases nose effect.", "diseases case effect.", "diseases do effect.", "diseases dose effects.", "diseases noise effect.", "diseases dosage effects."
"diseases due effect." » "diseases drug effect.", "diseases diet effect.", "diseases case effect.", "diseases edge effect.", "diseases age effect.", "diseases eae effect."

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: (("diseases drugs effectss.") or ((("diseases due effect.") OR ("diseases dose effect."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("diseases drugs effectss.") OR ((("diseases due effect.") OR ("diseases dose effect.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"diseases drugs effectss.\") or (((\"diseases due effect.\") OR (\"diseases dose effect.\"))))".
• Removing quotes may allow a broader search: (( diseases drugs effectss. ) or ((( diseases due effect. ) OR ( diseases dose effect. )))).
• Adding a wildcard symbol may retrieve word variants: (("diseases drugs effectss.") or ((("diseases due effect.") OR ("diseases dose effect."))))*.