Talvez deva tentar algumas variações de ortografia:
coulomb jason » coulombe manon (Expandir a Pesquisa), coulomb gas (Expandir a Pesquisa), coult jason (Expandir a Pesquisa)
complex trans » complex traits (Expandir a Pesquisa), complex trait (Expandir a Pesquisa), complex than (Expandir a Pesquisa)
carlos negras » carlos negrao (Expandir a Pesquisa), carlos ferras (Expandir a Pesquisa), carlos negro (Expandir a Pesquisa)
meo complex » mo complex (Expandir a Pesquisa), metro complex (Expandir a Pesquisa), feio complex (Expandir a Pesquisa)
trans ngoc » tran ngoc (Expandir a Pesquisa), trang ngoc (Expandir a Pesquisa), thanh ngoc (Expandir a Pesquisa)
nas carlos » bas carlos (Expandir a Pesquisa), nassi carlos (Expandir a Pesquisa), canas carlos (Expandir a Pesquisa)
7.5 nucl » 7.5 nacl (Expandir a Pesquisa)
nucl nas » nacl nas (Expandir a Pesquisa), kcl nas (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 _ coulomb jason _ ) or ((( 5 meo complex trans ngoc ) or ( 7.5 nucl nas carlos negras ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ coulomb jason _ ) OR ((( 5 meo complex trans ngoc ) OR ( 7.5 nucl nas carlos negras )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ coulomb jason _ ) or ((( 5 meo complex trans ngoc ) or ( 7.5 nucl nas carlos negras ))))*.