Talvez deva tentar algumas variações de ortografia:
insights gleaned » insights based (Expandir a Pesquisa)
heart insights » health insights (Expandir a Pesquisa), early insights (Expandir a Pesquisa)
heat insights » head insights (Expandir a Pesquisa), heal insights (Expandir a Pesquisa), health insights (Expandir a Pesquisa)
gained based » gain based (Expandir a Pesquisa), obtained based (Expandir a Pesquisa), defined based (Expandir a Pesquisa)
based target » based targeted (Expandir a Pesquisa)
gleaned from » learned from (Expandir a Pesquisa), released from (Expandir a Pesquisa), cloned from (Expandir a Pesquisa)
pain heart » brain heart (Expandir a Pesquisa), pain health (Expandir a Pesquisa), pain part (Expandir a Pesquisa)
clean heat » ocean heat (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": "(( pain heart insights gained based target ) OR ( clean heat insights gleaned from throat ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( pain heart insights gained based target ) OR ( clean heat insights gleaned from throat ))*.