Talvez deva tentar algumas variações de ortografia:
combating cancer » comparing cancer (Expandir a Pesquisa), combat cancer (Expandir a Pesquisa), combination cancer (Expandir a Pesquisa)
al combating » dual combating (Expandir a Pesquisa), war combating (Expandir a Pesquisa), _ combating (Expandir a Pesquisa)
nat compr » la compr (Expandir a Pesquisa), nat comm (Expandir a Pesquisa)
can newts » can net (Expandir a Pesquisa), can newly (Expandir a Pesquisa)
compr can » computer can (Expandir a Pesquisa), compared can (Expandir a Pesquisa)
comp can » camp can (Expandir a Pesquisa), chimp can (Expandir a Pesquisa), clamp can (Expandir a Pesquisa)
st comp » st como (Expandir a Pesquisa), et comp (Expandir a Pesquisa), test comp (Expandir a Pesquisa)
e nat » e nata (Expandir a Pesquisa), e nao (Expandir a Pesquisa), e nas (Expandir a Pesquisa)
j st » j et (Expandir a Pesquisa)
j al » j a (Expandir a Pesquisa), j l (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 st comp can newts ) or ( e nat compr can new ))) or ( j al combating cancer new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j st comp can newts ) OR ( e nat compr can new ))) OR ( j al combating cancer new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j st comp can newts ) or ( e nat compr can new ))) or ( j al combating cancer new ))*.