Talvez deva tentar algumas variações de ortografia:
factor complex » mtor complex (Expandir a Pesquisa), receptor complex (Expandir a Pesquisa)
complex tears » complex traits (Expandir a Pesquisa), complex trait (Expandir a Pesquisa), complex than (Expandir a Pesquisa)
semino carlos » serrano carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa), emilio carlos (Expandir a Pesquisa)
cooper jason » cooper john (Expandir a Pesquisa), cooper alan (Expandir a Pesquisa), cooper james (Expandir a Pesquisa)
carlos roger » carlos rogerio (Expandir a Pesquisa), carlos romero (Expandir a Pesquisa), carlos robert (Expandir a Pesquisa)
tears nlo » tears do (Expandir a Pesquisa), tears new (Expandir a Pesquisa)
m cooper » _ cooper (Expandir a Pesquisa), i cooper (Expandir a Pesquisa)
5 factor » 1 factor (Expandir a Pesquisa), 3 factor (Expandir a Pesquisa), 4 factor (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (( j m cooper jason _ ) or ((( 5 factor complex tears nlo ) or ( 0.9 nacl semino carlos roger ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j m cooper jason _ ) OR ((( 5 factor complex tears nlo ) OR ( 0.9 nacl semino carlos roger )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j m cooper jason _ ) or ((( 5 factor complex tears nlo ) or ( 0.9 nacl semino carlos roger ))))*.