Perhaps you should try some spelling variations:
"lungs / diseases, instructions" » "lung / diseases, instructions", "lungs / diseases, construction"
"lungs / disease, instructions" » "lung / disease, instructions", "lungs / disease, construction"
"lungs / diseases, destructive" » "lung / diseases, destructive", "lungs / diseases, destruction", "lungs / 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 / diseases, instructions") OR ("lungs / disease, instructions"))) OR ("lungs / diseases, destructive")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"lungs / diseases, instructions\") OR (\"lungs / disease, instructions\"))) or (\"lungs / diseases, destructive\"))".
• Removing quotes may allow a broader search: (((( lungs / diseases, instructions ) OR ( lungs / disease, instructions ))) or ( lungs / diseases, destructive )).
• Adding a wildcard symbol may retrieve word variants: (((("lungs / diseases, instructions") OR ("lungs / disease, instructions"))) or ("lungs / diseases, destructive"))*.