Talvez deva tentar algumas variações de ortografia:
central complex » several complex (Expandir a Pesquisa)
complex thieu » complex three (Expandir a Pesquisa), complex thin (Expandir a Pesquisa), complex third (Expandir a Pesquisa)
carlos nodal » carlos vidal (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos nejar (Expandir a Pesquisa)
nuno carlos » nino carlos (Expandir a Pesquisa), nunes carlos (Expandir a Pesquisa), bueno carlos (Expandir a Pesquisa)
comes john » combes john (Expandir a Pesquisa), coles john (Expandir a Pesquisa), tomes john (Expandir a Pesquisa)
john noel » john joel (Expandir a Pesquisa), john nigel (Expandir a Pesquisa), john neil (Expandir a Pesquisa)
5 central » 15 central (Expandir a Pesquisa), 0375 central (Expandir a Pesquisa), 0625 central (Expandir a Pesquisa)
nacl nuno » nacl nano (Expandir a Pesquisa), nacl kno (Expandir a Pesquisa), nacl mno (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa)
l comes » l comps (Expandir a Pesquisa), l coles (Expandir a Pesquisa), l comas (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Performing a fuzzy search may retrieve terms with similar spellings: (( j l comes john noel ) OR ((( 5 central complex thieu nga ) OR ( 7.5 nacl nuno carlos nodal ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l comes john noel ) OR ((( 5 central complex thieu nga ) OR ( 7.5 nacl nuno carlos nodal ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comes john noel ) OR ((( 5 central complex thieu nga ) OR ( 7.5 nacl nuno carlos nodal ))))*.