I would advise you to use the Keyword tool from MOZ (https://moz.com/explorer). This tool has a large keyword database. You only have to create a new project and add the keyword + your domain.
Query: ligação internacional claro (one of your kw's)
Top 4 pages
https://podecomparar.com.br/telecom/operadoras/claro/planos-fixo/claro-fixo-mundo
https://podecomparar.com.br/telecom/operadoras/claro/ddd-claro
https://faq.claro.com.br/duvida-do-cliente/como-fazer-uma-chamada-internacional
https://www.solaristelecom.com/como-ligar
