Perhaps you should try some spelling variations:
"british claim system" » "british coal system", "british civil system", "british crime system", "british claim systems", "british cim system", "british class system"
"british case system" » "british coast system", "british chanel system", "british crime system", "british base system", "british cas9 system", "british cas system"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"british case system\") OR (\"british claim system\"))".
• Removing quotes may allow a broader search: (( british case system ) OR ( british claim system )).
• Adding a wildcard symbol may retrieve word variants: (("british case system") OR ("british claim system"))*.