Talvez deva tentar algumas variações de ortografia:
insights hardly » insights early (Expandir a Pesquisa), insights hand (Expandir a Pesquisa)
scaling reward » scaling read (Expandir a Pesquisa), sharing reward (Expandir a Pesquisa), signaling reward (Expandir a Pesquisa)
insights hard » insights hand (Expandir a Pesquisa), insights have (Expandir a Pesquisa), insights ear (Expandir a Pesquisa)
head insights » heart insights (Expandir a Pesquisa), health insights (Expandir a Pesquisa), hearts insights (Expandir a Pesquisa)
nose throat » sore throat (Expandir a Pesquisa)
hardly pore » hardlei tore (Expandir a Pesquisa), hardly worth (Expandir a Pesquisa)
pore throat » sore throat (Expandir a Pesquisa), sore throats (Expandir a Pesquisa)
hard nose » hard nosed (Expandir a Pesquisa), hard core (Expandir a Pesquisa), hard case (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: (( scaling reward insights hard nose throat ) OR ( talin head insights hardly pore throat ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( scaling reward insights hard nose throat ) or ( talin head insights hardly pore throat ))*.