Talvez deva tentar algumas variações de ortografia:
matias chen » matias chan (Expandir a Pesquisa), matias cea (Expandir a Pesquisa), matias cena (Expandir a Pesquisa)
beier viola » lanier viola (Expandir a Pesquisa), dreyer viola (Expandir a Pesquisa)
mater chen » mayer chen (Expandir a Pesquisa), matter chern (Expandir a Pesquisa), walter chen (Expandir a Pesquisa)
viola med » viola m (Expandir a Pesquisa), viola d (Expandir a Pesquisa), viola e (Expandir a Pesquisa)
b lanier » w lanier (Expandir a Pesquisa), k lanier (Expandir a Pesquisa), p lanier (Expandir a Pesquisa)
l lanier » w lanier (Expandir a Pesquisa)
j matias » j matthias (Expandir a Pesquisa)
viola de » viola _ (Expandir a Pesquisa), viola a (Expandir a Pesquisa), viola b (Expandir a Pesquisa)
j mater » j matear (Expandir a Pesquisa), j mather (Expandir a Pesquisa), j mateu (Expandir a Pesquisa)
a beier » a beiter (Expandir a Pesquisa), a bezier (Expandir a Pesquisa), a beiser (Expandir a Pesquisa)
chen a » chen ai (Expandir a Pesquisa), chen amy (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 chen ((b lanier) or (l lanier)) viola med ) or ( j matias chen a beier viola de ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j mater chen ((b lanier) OR (l lanier)) viola med ) OR ( j matias chen a beier viola de ))*.