Perhaps you should try some spelling variations:
"lungs nodule rule" » "lung nodule rule", "lung nodules rule", "lungs nodule crust", "lungs nodule false", "lungs nodule grade"
"lung module rule" » "lung nodule rule", "lung nodules rule", "lunar module rule", "lung module module", "lung modular rules"
"lungs node rule" » "lungs novel rule", "lungs role rule", "lungs bone rule", "lungs code rule", "lungs mode rule", "lungs code rules"

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