Google custom site search for StackSavings.com

Google Custom site search is a free tool to create search engine that searches your website. Current url for StackSavings.com google custom search: https://cse.google.com/cse/publicurl?cx=013185131911710401092:ahrbdpz6sls Issues: It seems that content is not being fully indexed. For example, searching for "airbnb" brings up no results, although it is mentioned at the end of this article: https://stacksavings.com/detail-post/costa-rica-budget-travel-tips-and-advice-1Q6VWJ/en