Perhaps you should try some spelling variations:
"synfire chain" » "entire chain", "singie chain", "synfue chains"
"synfire chains" » "entire chains", "singie chains", "synfue chainss"
"single chains" » "single chain", "single domains", "single chip"

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 ("synfire chains"))) OR ((("single chains") OR ("single channel")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"synfire chain\") OR (\"synfire chains\"))) or (((\"single chains\") or (\"single channel\"))))".
• Removing quotes may allow a broader search: (((( synfire chain ) OR ( synfire chains ))) or ((( single chains ) or ( single channel )))).
• Adding a wildcard symbol may retrieve word variants: (((("synfire chain") OR ("synfire chains"))) or ((("single chains") or ("single channel"))))*.