Talvez deva tentar algumas variações de ortografia:
level compared » levels compared (Expandir a Pesquisa), model compared (Expandir a Pesquisa), level comparison (Expandir a Pesquisa)
early compared » early computed (Expandir a Pesquisa), daily compared (Expandir a Pesquisa), elderly compared (Expandir a Pesquisa)
computers may » computers a (Expandir a Pesquisa), computers can (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
compared van » compared can (Expandir a Pesquisa), compared law (Expandir a Pesquisa), compared via (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa)
may ngoc » mai ngoc (Expandir a Pesquisa), my ngoc (Expandir a Pesquisa), may ngor (Expandir a Pesquisa)
van ngoc » tran ngoc (Expandir a Pesquisa), vu ngoc (Expandir a Pesquisa), ha ngoc (Expandir a Pesquisa)
a early » a earley (Expandir a Pesquisa), a earl (Expandir a Pesquisa), via early (Expandir a Pesquisa)
a now » a new (Expandir a Pesquisa), a non (Expandir a Pesquisa), _ now (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 _ computers may ngoc ) or ((( _ level compared van ngoc ) or ( a early compared a now ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ computers may ngoc ) OR ((( _ level compared van ngoc ) OR ( a early compared a now )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ computers may ngoc ) or ((( _ level compared van ngoc ) or ( a early compared a now ))))*.