Talvez deva tentar algumas variações de ortografia:
complex concept » complex concepts (Expandir a Pesquisa), complex context (Expandir a Pesquisa), complex connects (Expandir a Pesquisa)
combat boot » combat root (Expandir a Pesquisa), combat colon (Expandir a Pesquisa), combat ebola (Expandir a Pesquisa)
art complex » arnt complex (Expandir a Pesquisa), act complex (Expandir a Pesquisa), akt complex (Expandir a Pesquisa)
cano carlos » luciano carlos (Expandir a Pesquisa), casiano carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa)
nacl cano » nacl nano (Expandir a Pesquisa), nacl caso4 (Expandir a Pesquisa), nacl co (Expandir a Pesquisa)
a combat » _ combat (Expandir a Pesquisa)
boot new » boot w (Expandir a Pesquisa), hot new (Expandir a Pesquisa), boot e (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
5 art » 5 arts (Expandir a Pesquisa), _ art (Expandir a Pesquisa), l art (Expandir a Pesquisa)
negrao » negras (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 a combat boot new ) or ((( 5 art complex concept _ ) or ( 3.5 nacl cano carlos negrao ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j a combat boot new ) OR ((( 5 art complex concept _ ) OR ( 3.5 nacl cano carlos negrao )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j a combat boot new ) or ((( 5 art complex concept _ ) or ( 3.5 nacl cano carlos negrao ))))*.