Talvez deva tentar algumas variações de ortografia:
optimal methods » optical methods (Expandir a Pesquisa), optimal method (Expandir a Pesquisa), optical method (Expandir a Pesquisa)
analog methods » analogy method (Expandir a Pesquisa), analysis methods (Expandir a Pesquisa), analytic methods (Expandir a Pesquisa)
anibal methods » animal methods (Expandir a Pesquisa), initial methods (Expandir a Pesquisa), actual methods (Expandir a Pesquisa)
methods cream » methods cam (Expandir a Pesquisa), methods ofreal (Expandir a Pesquisa), methods can (Expandir a Pesquisa)
methods real » methods reveal (Expandir a Pesquisa), methods reveals (Expandir a Pesquisa), methods a (Expandir a Pesquisa)
_ optimal » _ optical (Expandir a Pesquisa)
j analog » _ analog (Expandir a Pesquisa), 1 analog (Expandir a Pesquisa), a analog (Expandir a Pesquisa)
j anibal » a anibal (Expandir a Pesquisa), _ anibal (Expandir a Pesquisa), de anibal (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 analog methods cream ) or ( j anibal methods real ))) or ( _ optimal methods cream ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j analog methods cream ) OR ( j anibal methods real ))) OR ( _ optimal methods cream )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j analog methods cream ) or ( j anibal methods real ))) or ( _ optimal methods cream ))*.