Talvez deva tentar algumas variações de ortografia:
central complex » several complex (Expandir a Pesquisa)
complex atrial » complex trial (Expandir a Pesquisa), complex arterial (Expandir a Pesquisa), complex material (Expandir a Pesquisa)
atrial block » serial block (Expandir a Pesquisa), atrial blood (Expandir a Pesquisa), rural block (Expandir a Pesquisa)
nino carlos » cano carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa), semino carlos (Expandir a Pesquisa)
carlos nada » carlos nadaf (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos nara (Expandir a Pesquisa)
combs like » comb like (Expandir a Pesquisa), compass like (Expandir a Pesquisa)
5 central » 15 central (Expandir a Pesquisa), 0375 central (Expandir a Pesquisa), 0625 central (Expandir a Pesquisa)
nacl nino » 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 combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (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 combs like nk ) or ((( 5 central complex atrial block ) or ( 7.5 nacl nino carlos nada ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs like nk ) OR ((( 5 central complex atrial block ) OR ( 7.5 nacl nino carlos nada )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs like nk ) or ((( 5 central complex atrial block ) or ( 7.5 nacl nino carlos nada ))))*.