Talvez deva tentar algumas variações de ortografia:
mineral complex » several complex (Expandir a Pesquisa), central complex (Expandir a Pesquisa)
complex trex » complex tree (Expandir a Pesquisa), complex tetrex (Expandir a Pesquisa), complex text (Expandir a Pesquisa)
carlos nojek » carlos nunez (Expandir a Pesquisa), carlos nunes (Expandir a Pesquisa), carlos nejar (Expandir a Pesquisa)
23 mineral » 2 mineral (Expandir a Pesquisa), a mineral (Expandir a Pesquisa), 3d mineral (Expandir a Pesquisa)
con carlos » leon carlos (Expandir a Pesquisa), jhon carlos (Expandir a Pesquisa), simon carlos (Expandir a Pesquisa)
copp john » copps john (Expandir a Pesquisa), dopp john (Expandir a Pesquisa), cupp john (Expandir a Pesquisa)
trex ngoc » trieu ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), tien ngoc (Expandir a Pesquisa)
john noh » john john (Expandir a Pesquisa), john nova (Expandir a Pesquisa), john nash (Expandir a Pesquisa)
nacl con » nacl co (Expandir a Pesquisa), nacl co2 (Expandir a Pesquisa), nacl ion (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 _ copp john noh ) or ((( 23 mineral complex trex ngoc ) or ( 0.9 nacl con carlos nojek ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ copp john noh ) OR ((( 23 mineral complex trex ngoc ) OR ( 0.9 nacl con carlos nojek )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ copp john noh ) or ((( 23 mineral complex trex ngoc ) or ( 0.9 nacl con carlos nojek ))))*.