Talvez deva tentar algumas variações de ortografia:
mineral complex » several complex (Expandir a Pesquisa), central complex (Expandir a Pesquisa)
complex text » complete text (Expandir a Pesquisa), complex tear (Expandir a Pesquisa), complex context (Expandir a Pesquisa)
carlos joel » carlson joel (Expandir a Pesquisa), carlos jose (Expandir a Pesquisa), carlos joao (Expandir a Pesquisa)
comps john » copps john (Expandir a Pesquisa), combs john (Expandir a Pesquisa), camps johan (Expandir a Pesquisa)
john john » johnson john (Expandir a Pesquisa)
2 mineral » 23 mineral (Expandir a Pesquisa), _ mineral (Expandir a Pesquisa), a mineral (Expandir a Pesquisa)
text ngoc » text nlo (Expandir a Pesquisa), text non (Expandir a Pesquisa), text now (Expandir a Pesquisa)
en carlos » leon carlos (Expandir a Pesquisa), jaen carlos (Expandir a Pesquisa), chen carlos (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa)
l comps » m 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 comps john john ) or ((( 2 mineral complex text ngoc ) or ( 7.5 nacl en carlos joel ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l comps john john ) OR ((( 2 mineral complex text ngoc ) OR ( 7.5 nacl en carlos joel )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comps john john ) or ((( 2 mineral complex text ngoc ) or ( 7.5 nacl en carlos joel ))))*.