Talvez deva tentar algumas variações de ortografia:
daily commute » daily commutes (Expandir a Pesquisa), daily computer (Expandir a Pesquisa), daily computed (Expandir a Pesquisa)
commute core » commute mode (Expandir a Pesquisa), community core (Expandir a Pesquisa), complete core (Expandir a Pesquisa)
clamp pcr » lamp pcr (Expandir a Pesquisa), clamp pcna (Expandir a Pesquisa), amp pcr (Expandir a Pesquisa)
dna clamp » a clamp (Expandir a Pesquisa)
pcr newts » pcr new (Expandir a Pesquisa), pcr next (Expandir a Pesquisa)
nat camp » fat camp (Expandir a Pesquisa), cpt camp (Expandir a Pesquisa), cap camp (Expandir a Pesquisa)
camp can » clamp can (Expandir a Pesquisa), camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa)
can near » can never (Expandir a Pesquisa), can new (Expandir a Pesquisa)
core now » care now (Expandir a Pesquisa), core non (Expandir a Pesquisa), core new (Expandir a Pesquisa)
j daily » j daly (Expandir a Pesquisa), j daisy (Expandir a Pesquisa), j daigle (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), e nat (Expandir a Pesquisa)
j dna » _ dna (Expandir a Pesquisa), a dna (Expandir a Pesquisa), 1 dna (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 camp can near ) OR ( j dna clamp pcr newts ))) OR ( j daily commute core now ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nat camp can near ) OR ( j dna clamp pcr newts ))) OR ( j daily commute core now ))*.