Talvez deva tentar algumas variações de ortografia:
carlos zavala » carlos ayala (Expandir a Pesquisa), carlos zapata (Expandir a Pesquisa), cortes zavala (Expandir a Pesquisa)
gomez carlos » gomes carlos (Expandir a Pesquisa), gomez ceballos (Expandir a Pesquisa)
complex tien » complex times (Expandir a Pesquisa), complex than (Expandir a Pesquisa), complex time (Expandir a Pesquisa)
carlos na » carlos noa (Expandir a Pesquisa), carlos n (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa)
tien ngoc » tran ngoc (Expandir a Pesquisa), diep ngoc (Expandir a Pesquisa), tuan ngoc (Expandir a Pesquisa)
co carlos » fico carlos (Expandir a Pesquisa), caro carlos (Expandir a Pesquisa), cardo carlos (Expandir a Pesquisa)
0.9 nacl » 3.5 nacl (Expandir a Pesquisa)
5 novel » 2 novel (Expandir a Pesquisa)
nacl co » nacl co2 (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa), nacl kno (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 l gomez carlos na ) or ((( 5 novel complex tien ngoc ) or ( 0.9 nacl co carlos zavala ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l gomez carlos na ) OR ((( 5 novel complex tien ngoc ) OR ( 0.9 nacl co carlos zavala )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l gomez carlos na ) or ((( 5 novel complex tien ngoc ) or ( 0.9 nacl co carlos zavala ))))*.