Talvez deva tentar algumas variações de ortografia:
novel theory » model theory (Expandir a Pesquisa), level theory (Expandir a Pesquisa), novel therapy (Expandir a Pesquisa)
during noise » during noisy (Expandir a Pesquisa), using noise (Expandir a Pesquisa), during noble (Expandir a Pesquisa)
noise levels » noise level (Expandir a Pesquisa)
levels other » levels another (Expandir a Pesquisa), levels rather (Expandir a Pesquisa), levels over (Expandir a Pesquisa)
uses novel » use novel (Expandir a Pesquisa), does novel (Expandir a Pesquisa)
does liver » does life (Expandir a Pesquisa), does laser (Expandir a Pesquisa), drives liver (Expandir a Pesquisa)
liver ther » liver other (Expandir a Pesquisa), live rather (Expandir a Pesquisa), liver thle2 (Expandir a Pesquisa)
drug uses » drug users (Expandir a Pesquisa), drug use (Expandir a Pesquisa), drug user (Expandir a Pesquisa)
drug does » drug doses (Expandir a Pesquisa), drugs does (Expandir a Pesquisa), drug dose (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 uses novel theory ) or ((( drug does liver ther ) or ( during noise levels other ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( drug uses novel theory ) OR ((( drug does liver ther ) OR ( during noise levels other )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( drug uses novel theory ) or ((( drug does liver ther ) or ( during noise levels other ))))*.