Talvez deva tentar algumas variações de ortografia:
mario carlos » rio carlos (Expandir a Pesquisa), julio carlos (Expandir a Pesquisa), rubio carlos (Expandir a Pesquisa)
complex tran » complex trans (Expandir a Pesquisa), complex than (Expandir a Pesquisa), complex trait (Expandir a Pesquisa)
combs colon » combs colin (Expandir a Pesquisa), combat colon (Expandir a Pesquisa)
colon neue » colon need (Expandir a Pesquisa), colon new (Expandir a Pesquisa)
yl complex » al complex (Expandir a Pesquisa), yl complexes (Expandir a Pesquisa), msl complex (Expandir a Pesquisa)
carlos nav » carlos nava (Expandir a Pesquisa), carlos navas (Expandir a Pesquisa), carlos nara (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
5 yl » 2 yl (Expandir a Pesquisa), 1 yl (Expandir a Pesquisa), 4 yl (Expandir a Pesquisa)
ngoc » ngo (Expandir a Pesquisa)
nacl » natl (Expandir a Pesquisa), nac (Expandir a Pesquisa), nucl (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 colon neue ) or ((( 5 yl complex tran ngoc ) or ( 0.9 nacl mario carlos nav ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs colon neue ) OR ((( 5 yl complex tran ngoc ) OR ( 0.9 nacl mario carlos nav )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs colon neue ) or ((( 5 yl complex tran ngoc ) or ( 0.9 nacl mario carlos nav ))))*.