Talvez deva tentar algumas variações de ortografia:
colic treated » coli treated (Expandir a Pesquisa), colon treated (Expandir a Pesquisa), cold treated (Expandir a Pesquisa)
elder carlos » eder carlos (Expandir a Pesquisa), elder charles (Expandir a Pesquisa), ferrer carlos (Expandir a Pesquisa)
combs colic » combs colin (Expandir a Pesquisa), combe colin (Expandir a Pesquisa)
complejo la » complejo de (Expandir a Pesquisa), complejo en (Expandir a Pesquisa), complejo el (Expandir a Pesquisa)
nacl elder » nacl under (Expandir a Pesquisa)
carlos noe » carlos nobre (Expandir a Pesquisa), carlos nojek (Expandir a Pesquisa), carlos n (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa)
la ngoc » lam ngoc (Expandir a Pesquisa), le ngoc (Expandir a Pesquisa), ha ngoc (Expandir a Pesquisa)
_ del » _ der (Expandir a Pesquisa), y del (Expandir a Pesquisa), _ den (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 _ combs colic treated ) or ((( _ del complejo la ngoc ) or ( 7.5 nacl elder carlos noe ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ combs colic treated ) OR ((( _ del complejo la ngoc ) OR ( 7.5 nacl elder carlos noe )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ combs colic treated ) or ((( _ del complejo la ngoc ) or ( 7.5 nacl elder carlos noe ))))*.