Talvez deva tentar algumas variações de ortografia:
complex cause » complex causes (Expandir a Pesquisa), complex case (Expandir a Pesquisa), complex care (Expandir a Pesquisa)
oil complex » novel complex (Expandir a Pesquisa), model complex (Expandir a Pesquisa), cell complex (Expandir a Pesquisa)
cause now » cause non (Expandir a Pesquisa), cause new (Expandir a Pesquisa), abuse now (Expandir a Pesquisa)
can call » can all (Expandir a Pesquisa), can cell (Expandir a Pesquisa), can small (Expandir a Pesquisa)
call now » cell now (Expandir a Pesquisa), call note (Expandir a Pesquisa), till now (Expandir a Pesquisa)
a newly » _ newly (Expandir a Pesquisa)
oil can » oil cake (Expandir a Pesquisa)
l com » l como (Expandir a Pesquisa), e com (Expandir a Pesquisa), l con (Expandir a Pesquisa)
l oil » _ oil (Expandir a Pesquisa)
3 oil » 3 oils (Expandir a Pesquisa), _ oil (Expandir a Pesquisa), i 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": "(( j l com a newly ) OR ((( l oil complex cause now ) OR ( 3 oil can call now ))))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l com a newly ) OR ((( l oil complex cause now ) OR ( 3 oil can call now ))))*.