Talvez deva tentar algumas variações de ortografia:
complex tears » complex traits (Expandir a Pesquisa), complex trait (Expandir a Pesquisa), complex than (Expandir a Pesquisa)
carlos noel » carlos joel (Expandir a Pesquisa), carlos noe (Expandir a Pesquisa), carlos yoel (Expandir a Pesquisa)
john neetu » john reetu (Expandir a Pesquisa), john neetha (Expandir a Pesquisa), john neena (Expandir a Pesquisa)
al complex » al complete (Expandir a Pesquisa), al complejo (Expandir a Pesquisa), metal complex (Expandir a Pesquisa)
co carlos » fico carlos (Expandir a Pesquisa), cardo carlos (Expandir a Pesquisa), marco carlos (Expandir a Pesquisa)
e coombs » de coombs (Expandir a Pesquisa), e coombes (Expandir a Pesquisa), g coombs (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
nacl co » nacl co2 (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa), nacl kno (Expandir a Pesquisa)
2 al » 2 yl (Expandir a Pesquisa), _ al (Expandir a Pesquisa), 2 a (Expandir a Pesquisa)
ngoc » ngo (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 e coombs john neetu ) or ((( 2 al complex tears ngoc ) or ( 3.5 nacl co carlos noel ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e coombs john neetu ) OR ((( 2 al complex tears ngoc ) OR ( 3.5 nacl co carlos noel )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e coombs john neetu ) or ((( 2 al complex tears ngoc ) or ( 3.5 nacl co carlos noel ))))*.