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