Talvez deva tentar algumas variações de ortografia:
letter nursing » fever nursing (Expandir a Pesquisa), letter nurse (Expandir a Pesquisa)
nursing chest » nursing best (Expandir a Pesquisa), nursing chart (Expandir a Pesquisa), nursing cost (Expandir a Pesquisa)
letter nerve » letter nurse (Expandir a Pesquisa), matter nerve (Expandir a Pesquisa), letter nervous (Expandir a Pesquisa)
nerve cause » nerve caused (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve course (Expandir a Pesquisa)
chest dis » chest dogs (Expandir a Pesquisa), chest dog (Expandir a Pesquisa), chest drains (Expandir a Pesquisa)
cause dis » cause disc (Expandir a Pesquisa), cause des (Expandir a Pesquisa), cause di (Expandir a Pesquisa)
j letter » bj letter (Expandir a Pesquisa), cj letter (Expandir a Pesquisa), j letters (Expandir a Pesquisa)
nerve n » nerve na (Expandir a Pesquisa), nerve _ (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
n diet » n diez (Expandir a Pesquisa), n dief (Expandir a Pesquisa), n dien (Expandir a Pesquisa)
j beta » j beth (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j letter nerve n diet ) OR ( a letter nursing chest dis ))) OR ( j beta nerve cause dis ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j letter nerve n diet ) OR ( a letter nursing chest dis ))) OR ( j beta nerve cause dis ))*.