Talvez deva tentar algumas variações de ortografia:
layer compound » layer compounds (Expandir a Pesquisa), layered compound (Expandir a Pesquisa), ladder compound (Expandir a Pesquisa)
boy compared » body compared (Expandir a Pesquisa), boys compared (Expandir a Pesquisa), soy compared (Expandir a Pesquisa)
compared can » compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa), companies can (Expandir a Pesquisa)
compound law » compound la (Expandir a Pesquisa), compound laa (Expandir a Pesquisa), compound leaf (Expandir a Pesquisa)
nat compr » la compr (Expandir a Pesquisa), nat comm (Expandir a Pesquisa)
compr can » comp can (Expandir a Pesquisa), computer can (Expandir a Pesquisa)
can newts » can net (Expandir a Pesquisa), can newly (Expandir a Pesquisa)
law netw » law new (Expandir a Pesquisa), law note (Expandir a Pesquisa), law need (Expandir a Pesquisa)
j layer » j lager (Expandir a Pesquisa), j lamer (Expandir a Pesquisa), j lammer (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), a nat (Expandir a Pesquisa)
j boy » j boyd (Expandir a Pesquisa), j boys (Expandir a Pesquisa), j body (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 nat compr can new ) OR ( j boy compared can newts ))) OR ( j layer compound law netw ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nat compr can new ) OR ( j boy compared can newts ))) OR ( j layer compound law netw ))*.