Talvez deva tentar algumas variações de ortografia:
fast congo » east congo (Expandir a Pesquisa), west congo (Expandir a Pesquisa), fast cone (Expandir a Pesquisa)
congo cal » congo cas (Expandir a Pesquisa), congo scale (Expandir a Pesquisa), congo care (Expandir a Pesquisa)
can ngoc » van ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), phan ngoc (Expandir a Pesquisa)
hiv can » hiv care (Expandir a Pesquisa), hiv case (Expandir a Pesquisa)
clamp j » clamp _ (Expandir a Pesquisa)
cal now » call now (Expandir a Pesquisa), canal now (Expandir a Pesquisa), cell now (Expandir a Pesquisa)
a nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
j fast » j faust (Expandir a Pesquisa), j fausto (Expandir a Pesquisa)
a rat » _ rat (Expandir a Pesquisa)
j noh » _ noh (Expandir a Pesquisa)
rath » rate (Expandir a Pesquisa), rats (Expandir a Pesquisa), ruth (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 rath) or (a rat)) hiv can ngoc ) or ((( a nacl clamp j noh ) or ( j fast congo cal now ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( ((j rath) OR (a rat)) hiv can ngoc ) OR ((( a nacl clamp j noh ) OR ( j fast congo cal now )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( ((j rath) or (a rat)) hiv can ngoc ) or ((( a nacl clamp j noh ) or ( j fast congo cal now ))))*.