Talvez deva tentar algumas variações de ortografia:
other strains » other stories (Expandir a Pesquisa), other studies (Expandir a Pesquisa)
nikolaus de » nikolaus d (Expandir a Pesquisa), nikolas de (Expandir a Pesquisa), nikolaus e (Expandir a Pesquisa)
mailed biol » mailed blood (Expandir a Pesquisa)
strains w » strains wr (Expandir a Pesquisa), strains _ (Expandir a Pesquisa), strains a (Expandir a Pesquisa)
j mather » j mathew (Expandir a Pesquisa), j maher (Expandir a Pesquisa), j matthew (Expandir a Pesquisa)
mather m » mather _ (Expandir a Pesquisa), mather h (Expandir a Pesquisa), mather k (Expandir a Pesquisa)
a mailed » a failed (Expandir a Pesquisa), _ mailed (Expandir a Pesquisa), a maize (Expandir a Pesquisa)
6 other » _ other (Expandir a Pesquisa), 605 other (Expandir a Pesquisa), 1q other (Expandir a Pesquisa)
w marx » w mark (Expandir a Pesquisa), w mary (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se retirar as aspas poderá fazer uma pesquisa mais abragente: (( 6 other strains w marx nikolaus de ) or ( j mather m a mailed biol res ))~.