Talvez deva tentar algumas variações de ortografia:
active variant » active variants (Expandir a Pesquisa), inactive variant (Expandir a Pesquisa), acting variant (Expandir a Pesquisa)
complete case » complete cdna (Expandir a Pesquisa), complete closure (Expandir a Pesquisa)
tail complete » trial complete (Expandir a Pesquisa), al complete (Expandir a Pesquisa), tail complex (Expandir a Pesquisa)
variant stars » variant status (Expandir a Pesquisa), variant share (Expandir a Pesquisa), variant strains (Expandir a Pesquisa)
chimp can » chip can (Expandir a Pesquisa), chirp can (Expandir a Pesquisa), camp can (Expandir a Pesquisa)
can newts » can new (Expandir a Pesquisa), can net (Expandir a Pesquisa), can newly (Expandir a Pesquisa)
stars how » stars low (Expandir a Pesquisa)
case non » cause non (Expandir a Pesquisa), case note (Expandir a Pesquisa), use non (Expandir a Pesquisa)
3 active » 3 action (Expandir a Pesquisa)
a chimp » a chip (Expandir a Pesquisa), _ chimp (Expandir a Pesquisa), a chimer (Expandir a Pesquisa)
m tail » m tait (Expandir a Pesquisa), m taib (Expandir a Pesquisa), m tabl (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 a chimp can newts ) or ((( m tail complete case non ) or ( 3 active variant stars how ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j a chimp can newts ) OR ((( m tail complete case non ) OR ( 3 active variant stars how )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j a chimp can newts ) or ((( m tail complete case non ) or ( 3 active variant stars how ))))*.