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

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 / disease, instructive") OR ((("lungs / diseases, destructive") OR ("lung / diseases, destructive")))).
• Removing quotes may allow a broader search: (( lungs / disease, instructive ) or ((( lungs / diseases, destructive ) or ( lung / diseases, destructive )))).
• Adding a wildcard symbol may retrieve word variants: (("lungs / disease, instructive") or ((("lungs / diseases, destructive") or ("lung / diseases, destructive"))))*.