Perhaps you should try some spelling variations:
"lungs / diseases, instructive" » "lungs / disease, instructive", "lungs / diseases, constructive", "lungs / diseases, destructive"
"lungs / diseases, instruction" » "lungs / disease, instruction", "lungs / diseases, construction"
"lung / diseases, instruction" » "lung / disease, instruction", "lung / diseases, construction"
"lung / diseases, instructions" » "lung / disease, instructions", "lung / diseases, constructions", "lung / diseases, construction"

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: (("lungs / diseases, instructive") OR ((("lungs / diseases, instruction") OR ((("lung / diseases, instruction") OR ("lung / diseases, instructions")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"lungs / diseases, instructive\") or (((\"lungs / diseases, instruction\") or (((\"lung / diseases, instruction\") OR (\"lung / diseases, instructions\"))))))".
• Removing quotes may allow a broader search: (( lungs / diseases, instructive ) or ((( lungs / diseases, instruction ) or ((( lung / diseases, instruction ) OR ( lung / diseases, instructions )))))).
• Adding a wildcard symbol may retrieve word variants: (("lungs / diseases, instructive") or ((("lungs / diseases, instruction") or ((("lung / diseases, instruction") OR ("lung / diseases, instructions"))))))*.