Perhaps you should try some spelling variations:
"lungs / diseases, instruction" » "lung / diseases, instruction", "lungs / diseases, instructions", "lungs / diseases, construction"
"lungs / disease, destructive" » "lung / disease, destructive", "lungs / disease, destruction", "lungs / disease, 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 / diseases, instruction") OR ("lungs / disease, destructive")).
• Removing quotes may allow a broader search: (( lungs / diseases, instruction ) or ( lungs / disease, destructive )).
• Adding a wildcard symbol may retrieve word variants: (("lungs / diseases, instruction") or ("lungs / disease, destructive"))*.