Talvez deva tentar algumas variações de ortografia:
malaria comparing » malaria comparisons (Expandir a Pesquisa), malaria comparison (Expandir a Pesquisa), malaria compared (Expandir a Pesquisa)
comparing close » comparing dose (Expandir a Pesquisa), comparing case (Expandir a Pesquisa), comparing choice (Expandir a Pesquisa)
nacl complex » nail complex (Expandir a Pesquisa), nac56 complex (Expandir a Pesquisa), nasal complex (Expandir a Pesquisa)
close newts » close nexus (Expandir a Pesquisa), closed newton (Expandir a Pesquisa)
1 malaria » i malaria (Expandir a Pesquisa), as01 malaria (Expandir a Pesquisa), ama1 malaria (Expandir a Pesquisa)
nail bomb » oil bomb (Expandir a Pesquisa)
bomb can » bomba con (Expandir a Pesquisa), bomb a (Expandir a Pesquisa), bomb has (Expandir a Pesquisa)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
can now » can new (Expandir a Pesquisa), can non (Expandir a Pesquisa), can ngoc (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: (( 1 malaria comparing close newts ) or ((( a nail bomb can now ) or ( _ nacl complex case now ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( 1 malaria comparing close newts ) OR ((( a nail bomb can now ) OR ( _ nacl complex case now )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( 1 malaria comparing close newts ) or ((( a nail bomb can now ) or ( _ nacl complex case now ))))*.