Talvez deva tentar algumas variações de ortografia:
letter another » letters another (Expandir a Pesquisa), letter other (Expandir a Pesquisa), pattern another (Expandir a Pesquisa)
noisy letter » noise letter (Expandir a Pesquisa), noisy laser (Expandir a Pesquisa), noisy left (Expandir a Pesquisa)
doses novel » dose novel (Expandir a Pesquisa), does novel (Expandir a Pesquisa), poses novel (Expandir a Pesquisa)
doses level » dose level (Expandir a Pesquisa), does level (Expandir a Pesquisa), dose levels (Expandir a Pesquisa)
using noisy » using noise (Expandir a Pesquisa)
drug doses » drug dose (Expandir a Pesquisa)
novel ther » novel ether (Expandir a Pesquisa), novel thr (Expandir a Pesquisa), novel theory (Expandir a Pesquisa)
level ther » level theory (Expandir a Pesquisa), level rather (Expandir a Pesquisa), levels other (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 novel ther ) or ((( drug doses level ther ) or ( using noisy letter another ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( drug doses novel ther ) OR ((( drug doses level ther ) OR ( using noisy letter another )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( drug doses novel ther ) or ((( drug doses level ther ) or ( using noisy letter another ))))*.