Talvez deva tentar algumas variações de ortografia:
doses derived » edodes derived (Expandir a Pesquisa), losses derived (Expandir a Pesquisa), bases derived (Expandir a Pesquisa)
derived ther » derived rather (Expandir a Pesquisa), derived three (Expandir a Pesquisa), derived th1 (Expandir a Pesquisa)
level rather » levels rather (Expandir a Pesquisa), level rate (Expandir a Pesquisa), travel rather (Expandir a Pesquisa)
level theory » model theory (Expandir a Pesquisa)
drug doses » drug disease (Expandir a Pesquisa)
dose level » dose levels (Expandir a Pesquisa), noise level (Expandir a Pesquisa), dose live (Expandir a Pesquisa)
drugs diet » drugs does (Expandir a Pesquisa), drugs differ (Expandir a Pesquisa)
diet level » set level (Expandir a Pesquisa), dust level (Expandir a Pesquisa), debt level (Expandir a Pesquisa)
drug dose » drug dosage (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 doses derived ther ) or ((( drug dose level rather ) or ( drugs diet level theory ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( drug doses derived ther ) OR ((( drug dose level rather ) OR ( drugs diet level theory )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( drug doses derived ther ) or ((( drug dose level rather ) or ( drugs diet level theory ))))*.