Talvez deva tentar algumas variações de ortografia:
impaired nursing » impaired during (Expandir a Pesquisa), impaired working (Expandir a Pesquisa), impaired learning (Expandir a Pesquisa)
focal impaired » focal impairment (Expandir a Pesquisa), global impaired (Expandir a Pesquisa), al impaired (Expandir a Pesquisa)
gradin malla » pravin malla (Expandir a Pesquisa), gran malla (Expandir a Pesquisa), nabin malla (Expandir a Pesquisa)
nursing ngo » nursing new (Expandir a Pesquisa), nursing now (Expandir a Pesquisa), nursing afro (Expandir a Pesquisa)
malla ia » malla a (Expandir a Pesquisa), malla vial (Expandir a Pesquisa), malla raj (Expandir a Pesquisa)
j focal » _ focal (Expandir a Pesquisa), a focal (Expandir a Pesquisa), 1 focal (Expandir a Pesquisa)
j nayl » a nayl (Expandir a Pesquisa), j nay (Expandir a Pesquisa), j nail (Expandir a Pesquisa)
ia non » via non (Expandir a Pesquisa), iiia non (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: (( j focal impaired nursing ngo ) OR ((( j nayl clamp _ noh ) OR ( j gradin malla ia non ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j focal impaired nursing ngo ) OR ((( j nayl clamp _ noh ) OR ( j gradin malla ia non ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j focal impaired nursing ngo ) OR ((( j nayl clamp _ noh ) OR ( j gradin malla ia non ))))*.