Talvez deva tentar algumas variações de ortografia:
mineral complex » several complex (Expandir a Pesquisa), central complex (Expandir a Pesquisa)
complex thuan » complex than (Expandir a Pesquisa), complex thin (Expandir a Pesquisa), complex thumb (Expandir a Pesquisa)
knopf carlos » prof carlos (Expandir a Pesquisa)
carlos nojek » carlos nunez (Expandir a Pesquisa), carlos nunes (Expandir a Pesquisa), carlos nejar (Expandir a Pesquisa)
copps john » coppin john (Expandir a Pesquisa), apps john (Expandir a Pesquisa), coles john (Expandir a Pesquisa)
thuan ngoc » tuan ngoc (Expandir a Pesquisa), thuan ngo (Expandir a Pesquisa), nhuan ngoc (Expandir a Pesquisa)
a mineral » _ mineral (Expandir a Pesquisa), agua mineral (Expandir a Pesquisa)
john noh » john john (Expandir a Pesquisa), john nova (Expandir a Pesquisa), john nash (Expandir a Pesquisa)
7.5 natl » 7.5 nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
l copps » l copp (Expandir a Pesquisa), _ copps (Expandir a Pesquisa), l coppel (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 copps john noh ) or ((( a mineral complex thuan ngoc ) or ( 7.5 natl knopf carlos nojek ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l copps john noh ) OR ((( a mineral complex thuan ngoc ) OR ( 7.5 natl knopf carlos nojek )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l copps john noh ) or ((( a mineral complex thuan ngoc ) or ( 7.5 natl knopf carlos nojek ))))*.