Talvez deva tentar algumas variações de ortografia:
model compared » model compound (Expandir a Pesquisa), model combined (Expandir a Pesquisa), model complex (Expandir a Pesquisa)
compared less » comparee les (Expandir a Pesquisa), comparer les (Expandir a Pesquisa), compared leaf (Expandir a Pesquisa)
nat comp » nat comm (Expandir a Pesquisa), et comp (Expandir a Pesquisa), nat cov (Expandir a Pesquisa)
comp can » chimp can (Expandir a Pesquisa), clamp can (Expandir a Pesquisa), comp la (Expandir a Pesquisa)
less now » less known (Expandir a Pesquisa)
camp can » clamp can (Expandir a Pesquisa), camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa)
can netw » can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa), can now (Expandir a Pesquisa)
_ model » _ modern (Expandir a Pesquisa)
al camp » al campo (Expandir a Pesquisa), al campa (Expandir a Pesquisa), al campus (Expandir a Pesquisa)
e nat » e nata (Expandir a Pesquisa), e nao (Expandir a Pesquisa), e nas (Expandir a Pesquisa)
j al » j a (Expandir a Pesquisa), j l (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( e nat comp can new ) OR ( _ model compared less now ))) OR ( j al camp can netw ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( e nat comp can new ) or ( _ model compared less now ))) or ( j al camp can netw ))*.