Perhaps you should try some spelling variations:
"synfire chain" » "synfire chains", "entire chain", "singie chain"
"single chains" » "single chain", "single channel", "single domains"
"side channel" » "sie channel", "site channel", "size channel"

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: (((("synfire chain") OR ("side channel"))) OR ("single chains"))*.
• Removing quotes may allow a broader search: (((( synfire chain ) or ( side channel ))) or ( single chains ))*.