Talvez deva tentar algumas variações de ortografia:
beier viola » lanier viola (Expandir a Pesquisa)
mather cam » mather adam (Expandir a Pesquisa), mather chad (Expandir a Pesquisa), mather m (Expandir a Pesquisa)
maier max » maier marc (Expandir a Pesquisa), maier emar (Expandir a Pesquisa), maier a (Expandir a Pesquisa)
j mather » j mathew (Expandir a Pesquisa), j maher (Expandir a Pesquisa), j matthew (Expandir a Pesquisa)
j mater » j matear (Expandir a Pesquisa), j mateu (Expandir a Pesquisa), j mateo (Expandir a Pesquisa)
max mxd » max mad (Expandir a Pesquisa), max mad1 (Expandir a Pesquisa)
a beier » a beiter (Expandir a Pesquisa), a bezier (Expandir a Pesquisa), a beiser (Expandir a Pesquisa)
viola d » viola de (Expandir a Pesquisa), viola _ (Expandir a Pesquisa), viola a (Expandir a Pesquisa)
chem e » chem a (Expandir a Pesquisa), chem sex (Expandir a Pesquisa)
cam a » camm a (Expandir a Pesquisa), com a (Expandir a Pesquisa), cam _ (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 mater ((chem e) OR (chem _)) maier max mxd ) OR ( j mather cam a beier viola d ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j mater ((chem e) OR (chem _)) maier max mxd ) OR ( j mather cam a beier viola d ))*".