Talvez deva tentar algumas variações de ortografia:
cobalt complex » cobalt complexes (Expandir a Pesquisa)
complex tear » complex tears (Expandir a Pesquisa), complex than (Expandir a Pesquisa), complex trait (Expandir a Pesquisa)
carlos rojek » carlos nojek (Expandir a Pesquisa), carlos rojas (Expandir a Pesquisa), carlos roger (Expandir a Pesquisa)
kno carlos » knopf carlos (Expandir a Pesquisa), cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa)
tear flow » shear flow (Expandir a Pesquisa), tear from (Expandir a Pesquisa)
l cooper » _ cooper (Expandir a Pesquisa), i cooper (Expandir a Pesquisa), m cooper (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa)
nacl kno » nacl nano (Expandir a Pesquisa), nacl en (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa)
john _ » john a (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 cooper john _ ) or ((( _ cobalt complex tear flow ) or ( 7.5 nacl kno carlos rojek ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l cooper john _ ) OR ((( _ cobalt complex tear flow ) OR ( 7.5 nacl kno carlos rojek )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l cooper john _ ) or ((( _ cobalt complex tear flow ) or ( 7.5 nacl kno carlos rojek ))))*.