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