Talvez deva tentar algumas variações de ortografia:
norway comparative » array comparative (Expandir a Pesquisa), germany comparative (Expandir a Pesquisa), policy comparative (Expandir a Pesquisa)
rat compare » rat compared (Expandir a Pesquisa), rate compare (Expandir a Pesquisa), rats compare (Expandir a Pesquisa)
nat2 comp » nat2 com (Expandir a Pesquisa), aav2 comp (Expandir a Pesquisa)
compare a » compare _ (Expandir a Pesquisa)
comp van » comp can (Expandir a Pesquisa), comp san (Expandir a Pesquisa), comp va (Expandir a Pesquisa)
van ngoc » tran ngoc (Expandir a Pesquisa), vu ngoc (Expandir a Pesquisa), bao ngoc (Expandir a Pesquisa)
j norway » _ norway (Expandir a Pesquisa), a norway (Expandir a Pesquisa), 1 norway (Expandir a Pesquisa)
law now » laws now (Expandir a Pesquisa), law new (Expandir a Pesquisa), law non (Expandir a Pesquisa)
a rat » _ rat (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 van ngoc ) or ((( j norway comparative law now ) or ( a rat compare a new ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( 2 nat2 comp van ngoc ) OR ((( j norway comparative law now ) OR ( a rat compare a new )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( 2 nat2 comp van ngoc ) or ((( j norway comparative law now ) or ( a rat compare a new ))))*.