Talvez deva tentar algumas variações de ortografia:
snail1 complex » snai1 complex (Expandir a Pesquisa), snail complex (Expandir a Pesquisa), snails complex (Expandir a Pesquisa)
natl compared » nacl compared (Expandir a Pesquisa), nail compared (Expandir a Pesquisa), acl compared (Expandir a Pesquisa)
compared can » compared case (Expandir a Pesquisa), compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa)
complex can » complex case (Expandir a Pesquisa), complex care (Expandir a Pesquisa), complex cell (Expandir a Pesquisa)
compr can » comp can (Expandir a Pesquisa), computer can (Expandir a Pesquisa)
_ snail1 » _ snail (Expandir a Pesquisa), _ snails (Expandir a Pesquisa)
l compr » l comper (Expandir a Pesquisa), la compr (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
can non » dan non (Expandir a Pesquisa), than non (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j nat (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j l compr can new ) OR ( _ snail1 complex can non ))) OR ( j natl compared can new ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j l compr can new ) OR ( _ snail1 complex can non ))) OR ( j natl compared can new ))*.