Talvez deva tentar algumas variações de ortografia:
complex cases » complex causes (Expandir a Pesquisa), complex case (Expandir a Pesquisa), complex care (Expandir a Pesquisa)
oil compared » tool compared (Expandir a Pesquisa), gel compared (Expandir a Pesquisa), ml compared (Expandir a Pesquisa)
tail complex » oil complex (Expandir a Pesquisa), metal complex (Expandir a Pesquisa), basal complex (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
nacl cony » nacl co (Expandir a Pesquisa), nacl co2 (Expandir a Pesquisa), nacl ion (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
a newly » _ newly (Expandir a Pesquisa)
m tail » m tait (Expandir a Pesquisa), m taib (Expandir a Pesquisa), m tabl (Expandir a Pesquisa)
l oil » _ oil (Expandir a Pesquisa)
nunez » nunes (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": "(( l oil compared a newly ) OR ((( m tail complex cases new ) OR ( 3.5 nacl cony carlos nunez ))))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( l oil compared a newly ) OR ((( m tail complex cases new ) OR ( 3.5 nacl cony carlos nunez ))))*.