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

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