Talvez deva tentar algumas variações de ortografia:
called rather » called other (Expandir a Pesquisa), called catheter (Expandir a Pesquisa), based rather (Expandir a Pesquisa)
noise called » noises called (Expandir a Pesquisa), noise caused (Expandir a Pesquisa), noise scaled (Expandir a Pesquisa)
during noise » during noisy (Expandir a Pesquisa), during noble (Expandir a Pesquisa), reducing noise (Expandir a Pesquisa)
level ther » level theory (Expandir a Pesquisa), level rather (Expandir a Pesquisa), levels other (Expandir a Pesquisa)
drugs does » drugs do (Expandir a Pesquisa)
does liver » does life (Expandir a Pesquisa), drives liver (Expandir a Pesquisa)
liver ther » liver other (Expandir a Pesquisa), liver rather (Expandir a Pesquisa), live rather (Expandir a Pesquisa)
drug does » drug doses (Expandir a Pesquisa), drug dose (Expandir a Pesquisa), drug de (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: (( drug does level ther ) or ((( drugs does liver ther ) or ( during noise called rather ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( drug does level ther ) OR ((( drugs does liver ther ) OR ( during noise called rather )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( drug does level ther ) or ((( drugs does liver ther ) or ( during noise called rather ))))*.