Talvez deva tentar algumas variações de ortografia:
enables complex » enable complex (Expandir a Pesquisa), enables complete (Expandir a Pesquisa), enables coupled (Expandir a Pesquisa)
complex tran » complex trans (Expandir a Pesquisa), complex than (Expandir a Pesquisa), complex trait (Expandir a Pesquisa)
compsany cpr » company car (Expandir a Pesquisa), company bor (Expandir a Pesquisa), company can (Expandir a Pesquisa)
comps can » comps con (Expandir a Pesquisa), comes can (Expandir a Pesquisa), comp can (Expandir a Pesquisa)
can newts » can new (Expandir a Pesquisa), can newly (Expandir a Pesquisa)
_ enables » _ enable (Expandir a Pesquisa)
l comps » m comps (Expandir a Pesquisa)
cpr now » apmr now (Expandir a Pesquisa)
ngoc » ngo (Expandir a Pesquisa)
nacl » natl (Expandir a Pesquisa), nac (Expandir a Pesquisa), nucl (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 comps can newts ) OR ((( _ enables complex tran ngoc ) OR ( 0.9 nacl compsany cpr now ))))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comps can newts ) OR ((( _ enables complex tran ngoc ) OR ( 0.9 nacl compsany cpr now ))))*.