Perhaps you should try some spelling variations:
"silver chain disease" » "silver brain disease", "silver brain diseases", "silver chagas disease", "silver chair disease", "silver coin disease", "silver can disease"
"silver renin release" » "silver refining release", "silver lining release", "silver mining release"
"silver rain release" » "silver brain release", "silver strain release", "silver chain release", "silver stain release", "silver coin release", "silver can release"

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: (("silver chain disease") OR ((("silver renin release") OR ("silver rain release")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"silver chain disease\") or (((\"silver renin release\") OR (\"silver rain release\"))))".
• Removing quotes may allow a broader search: (( silver chain disease ) or ((( silver renin release ) OR ( silver rain release )))).
• Adding a wildcard symbol may retrieve word variants: (("silver chain disease") or ((("silver renin release") OR ("silver rain release"))))*.