Talvez deva tentar algumas variações de ortografia:
failed biol » failed bia (Expandir a Pesquisa), failed big (Expandir a Pesquisa), failed bipolar (Expandir a Pesquisa)
other stem » other stis (Expandir a Pesquisa), other systems (Expandir a Pesquisa), other states (Expandir a Pesquisa)
anne viola » annes viola (Expandir a Pesquisa), anna viola (Expandir a Pesquisa), andre viola (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 failed » _ failed (Expandir a Pesquisa)
f other » _ other (Expandir a Pesquisa), 6 other (Expandir a Pesquisa), 1 other (Expandir a Pesquisa)
viola b » viola _ (Expandir a Pesquisa), viola a (Expandir a Pesquisa)
stem w » stem wb (Expandir a Pesquisa), stem _ (Expandir a Pesquisa), stem a (Expandir a Pesquisa)
w anne » w annie (Expandir a Pesquisa), saw anne (Expandir a Pesquisa), low anne (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: (( f other stem w anne viola b ) or ( j mather m a failed biol res ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( f other stem w anne viola b ) OR ( j mather m a failed biol res ))*.