Talvez deva tentar algumas variações de ortografia:
animal complexity » minimal complexity (Expandir a Pesquisa), enamel complexity (Expandir a Pesquisa), trial complexity (Expandir a Pesquisa)
complexity trex » complexity trees (Expandir a Pesquisa), complexity threat (Expandir a Pesquisa), complexity break (Expandir a Pesquisa)
semino carlos » serrano carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa), emilio carlos (Expandir a Pesquisa)
carlos noel » carlos joel (Expandir a Pesquisa), carlos noe (Expandir a Pesquisa), carlos yoel (Expandir a Pesquisa)
trex ngoa » trieu ngoa (Expandir a Pesquisa)
e combs » sex combs (Expandir a Pesquisa)
combs c » combs _ (Expandir a Pesquisa)
c net » c neto (Expandir a Pesquisa), _ net (Expandir a Pesquisa), c neu (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 e combs c net ) or ((( 15 animal complexity trex ngoa ) or ( 0.9 nacl semino carlos noel ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e combs c net ) OR ((( 15 animal complexity trex ngoa ) OR ( 0.9 nacl semino carlos noel )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e combs c net ) or ((( 15 animal complexity trex ngoa ) or ( 0.9 nacl semino carlos noel ))))*.