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