Talvez deva tentar algumas variações de ortografia:
norway comparative » array comparative (Expandir a Pesquisa), germany comparative (Expandir a Pesquisa), policy comparative (Expandir a Pesquisa)
comparative ral » comparative real (Expandir a Pesquisa), comparative oral (Expandir a Pesquisa), comparative rat (Expandir a Pesquisa)
rates compared » diabetes compared (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa)
nat2 comp » nat2 com (Expandir a Pesquisa), aav2 comp (Expandir a Pesquisa)
comp can » camp can (Expandir a Pesquisa), chimp can (Expandir a Pesquisa), clamp can (Expandir a Pesquisa)
can ngoc » van ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), phan ngoc (Expandir a Pesquisa)
j norway » _ norway (Expandir a Pesquisa), a norway (Expandir a Pesquisa), 1 norway (Expandir a Pesquisa)
ral net » real net (Expandir a Pesquisa), al net (Expandir a Pesquisa), renal net (Expandir a Pesquisa)
j rates » j raes (Expandir a Pesquisa), j ramesh (Expandir a Pesquisa), j rajesh (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: (( 2 nat2 comp can ngoc ) or ((( j norway comparative ral net ) or ( j rates compared a new ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( 2 nat2 comp can ngoc ) OR ((( j norway comparative ral net ) OR ( j rates compared a new )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( 2 nat2 comp can ngoc ) or ((( j norway comparative ral net ) or ( j rates compared a new ))))*.