Perhaps you should try some spelling variations:
single domains » single domain, finite domains
synfire chain » synfire chains, entire chain, synfue chains
single chains » single chain, single channel, single charge
singie chain » single chain, side chain, ising chain
single chip » single chain

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