Talvez deva tentar algumas variações de ortografia:
complex custer » complex cluster (Expandir a Pesquisa), complex master (Expandir a Pesquisa), complex clustered (Expandir a Pesquisa)
nail complex » snail complex (Expandir a Pesquisa), tail complex (Expandir a Pesquisa), snail1 complex (Expandir a Pesquisa)
complex care » complex case (Expandir a Pesquisa)
oil complex » cell complex (Expandir a Pesquisa)
custer new » cluster new (Expandir a Pesquisa), counter new (Expandir a Pesquisa), munster new (Expandir a Pesquisa)
care new » care need (Expandir a Pesquisa)
_ nat'l » _ natal (Expandir a Pesquisa), _ natl (Expandir a Pesquisa), _ nato's (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
a newts » _ newts (Expandir a Pesquisa), a news (Expandir a Pesquisa), a newt (Expandir a Pesquisa)
3 nail » a nail (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
3 oil » 3 oils (Expandir a Pesquisa), _ oil (Expandir a Pesquisa), l oil (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": "(((( 3 nail complex care new ) OR ( 3 oil complex custer new ))) OR ( _ nat'l clamp a newts ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 3 nail complex care new ) OR ( 3 oil complex custer new ))) OR ( _ nat'l clamp a newts ))*.