Talvez deva tentar algumas variações de ortografia:
comparing caries » comparing carrier (Expandir a Pesquisa), comparing care (Expandir a Pesquisa), comparing causes (Expandir a Pesquisa)
nacl comparing » al comparing (Expandir a Pesquisa), all comparing (Expandir a Pesquisa), rachel comparing (Expandir a Pesquisa)
brain complex » brain complete (Expandir a Pesquisa), chain complex (Expandir a Pesquisa), brain complexity (Expandir a Pesquisa)
comas clean » comes clean (Expandir a Pesquisa), coming clean (Expandir a Pesquisa)
clean neck » lean neck (Expandir a Pesquisa), can neck (Expandir a Pesquisa), clean net (Expandir a Pesquisa)
caries new » caries en (Expandir a Pesquisa), caries de (Expandir a Pesquisa), series new (Expandir a Pesquisa)
complex v » complex via (Expandir a Pesquisa)
l comas » l comps (Expandir a Pesquisa), l comeau (Expandir a Pesquisa)
5 brain » 15 brain (Expandir a Pesquisa), ad brain (Expandir a Pesquisa)
v ngoc » vu ngoc (Expandir a Pesquisa), vo ngoc (Expandir a Pesquisa), _ 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: (( j l comas clean neck ) or ((( 5 brain complex v ngoc ) or ( m nacl comparing caries new ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l comas clean neck ) OR ((( 5 brain complex v ngoc ) OR ( m nacl comparing caries new )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comas clean neck ) or ((( 5 brain complex v ngoc ) or ( m nacl comparing caries new ))))*.