Talvez deva tentar algumas variações de ortografia:
complex text » complete text (Expandir a Pesquisa), complex tear (Expandir a Pesquisa), complex context (Expandir a Pesquisa)
ning carlos » nino carlos (Expandir a Pesquisa), nin carlos (Expandir a Pesquisa), ing carlos (Expandir a Pesquisa)
combs john » coombs john (Expandir a Pesquisa), combes john (Expandir a Pesquisa), coombes john (Expandir a Pesquisa)
mg complex » cmg complex (Expandir a Pesquisa), g complex (Expandir a Pesquisa), ag complex (Expandir a Pesquisa)
nacl ning » nacl using (Expandir a Pesquisa), nacl nano (Expandir a Pesquisa)
john new » john agnew (Expandir a Pesquisa), john neil (Expandir a Pesquisa), john n (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)
text 8 » text _ (Expandir a Pesquisa), text a (Expandir a Pesquisa)
5 mg » _ mg (Expandir a Pesquisa), 2 mg (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 john new ) or ((( 5 mg complex text 8 ) or ( 7.5 nacl ning carlos (nara or nada) ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs john new ) OR ((( 5 mg complex text 8 ) OR ( 7.5 nacl ning carlos (nara OR nada) )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs john new ) or ((( 5 mg complex text 8 ) or ( 7.5 nacl ning carlos (nara or nada) ))))*.