Talvez deva tentar algumas variações de ortografia:
doses develop » loss develop (Expandir a Pesquisa), models develop (Expandir a Pesquisa), locus develop (Expandir a Pesquisa)
develop them » develop type (Expandir a Pesquisa)
devel ther » novel ther (Expandir a Pesquisa), level theory (Expandir a Pesquisa)
diet novel » die novel (Expandir a Pesquisa), diet over (Expandir a Pesquisa), yet novel (Expandir a Pesquisa)
drug doses » drug dose (Expandir a Pesquisa), drug disease (Expandir a Pesquisa)
drug diet » drugs diet (Expandir a Pesquisa), drug does (Expandir a Pesquisa), drug dye (Expandir a Pesquisa)
novel thr » novel thrb (Expandir a Pesquisa), novel ther (Expandir a Pesquisa), novel th2 (Expandir a Pesquisa)
de devel » de deve (Expandir a Pesquisa), de dever (Expandir a Pesquisa), de deber (Expandir a Pesquisa)
drug de » drug dose (Expandir a Pesquisa), drug dna (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( drug diet novel thr ) OR ( drug de devel ther ))) OR ( drug doses develop them ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( drug diet novel thr ) or ( drug de devel ther ))) or ( drug doses develop them ))*.