Perhaps you should try some spelling variations:
"synfire chain" » "singie chain", "synfue chains"
"synfire chains" » "singie chains", "synfue chainss"
"single chains" » "single channel", "single domains", "single chip", "single channels"
"entire chain" » "entire brain", "entire domain", "entire change"
"single chain" » "single 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 ("synfire chains"))) OR ("entire chain"))) OR ((("single chains") OR ("single chain")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"synfire chain\") or (\"synfire chains\"))) or (\"entire chain\"))) or (((\"single chains\") OR (\"single chain\"))))".
• Removing quotes may allow a broader search: (((((( synfire chain ) or ( synfire chains ))) or ( entire chain ))) or ((( single chains ) OR ( single chain )))).
• Adding a wildcard symbol may retrieve word variants: (((((("synfire chain") or ("synfire chains"))) or ("entire chain"))) or ((("single chains") OR ("single chain"))))*.