Talvez deva tentar algumas variações de ortografia:
absence negative » advance negative (Expandir a Pesquisa), science negative (Expandir a Pesquisa), absolute negative (Expandir a Pesquisa)
negative cis » negative case (Expandir a Pesquisa), negative co (Expandir a Pesquisa), negative cells (Expandir a Pesquisa)
mehta neeraj » mehta niraj (Expandir a Pesquisa), mishra neeraj (Expandir a Pesquisa), mehta nehal (Expandir a Pesquisa)
benet merve » senem merve (Expandir a Pesquisa)
merve can » nerve can (Expandir a Pesquisa)
j benet » j bennett (Expandir a Pesquisa), j benito (Expandir a Pesquisa), j benesi (Expandir a Pesquisa)
can die » can diet (Expandir a Pesquisa), van die (Expandir a Pesquisa), aan die (Expandir a Pesquisa)
cis dis » cis cis (Expandir a Pesquisa), cis di (Expandir a Pesquisa), cis diols (Expandir a Pesquisa)
_ mehta » a mehta (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 benet merve can die ) or ((( _ absence negative cis dis ) or ( _ mehta neeraj cyst due ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j benet merve can die ) OR ((( _ absence negative cis dis ) OR ( _ mehta neeraj cyst due )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j benet merve can die ) or ((( _ absence negative cis dis ) or ( _ mehta neeraj cyst due ))))*.