Talvez deva tentar algumas variações de ortografia:
capn ngoc » can ngoc (Expandir a Pesquisa), van ngoc (Expandir a Pesquisa), cao ngoc (Expandir a Pesquisa)
grail has » brazil has (Expandir a Pesquisa), grail what (Expandir a Pesquisa), grail a (Expandir a Pesquisa)
cap near » camp near (Expandir a Pesquisa), map near (Expandir a Pesquisa), scalp near (Expandir a Pesquisa)
gap near » gap year (Expandir a Pesquisa), map near (Expandir a Pesquisa), gmp near (Expandir a Pesquisa)
cat ngoc » can ngoc (Expandir a Pesquisa), cao ngoc (Expandir a Pesquisa), cam ngoc (Expandir a Pesquisa)
has capn » has canan (Expandir a Pesquisa), has care (Expandir a Pesquisa), has camp (Expandir a Pesquisa)
j natla » j natalia (Expandir a Pesquisa), j nastula (Expandir a Pesquisa), j nathan (Expandir a Pesquisa)
natla a » patla a (Expandir a Pesquisa), batla a (Expandir a Pesquisa), catla a (Expandir a Pesquisa)
_ grail » _ grain (Expandir a Pesquisa), _ grains (Expandir a Pesquisa)
l cap » _ cap (Expandir a Pesquisa), a cap (Expandir a Pesquisa), 5 cap (Expandir a Pesquisa)
a cat » _ cat (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 cap ((cap near) OR (gap near)) ) or ((( j natla a cat ngoc ) or ( _ grail has capn ngoc ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l cap ((cap near) OR (gap near)) ) OR ((( j natla a cat ngoc ) OR ( _ grail has capn ngoc )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l cap ((cap near) OR (gap near)) ) or ((( j natla a cat ngoc ) or ( _ grail has capn ngoc ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l cap ((cap near) OR (gap near)) ) or ((( j natla a cat ngoc ) or ( _ grail has capn ngoc ))))*.