This post should not appear in the search index because it has the following YAML Front Matter:
search: false only works to exclude posts when using Lunr as a search provider.
To exclude files when using Algolia as a search provider add an array to
algolia.files_to_exclude in your
_config.yml. For more configuration options be sure to check their full documentation.
algolia: # Exclude more files from indexing files_to_exclude: - index.html - index.md - excluded-file.html - _posts/2017-11-28-post-exclude-search.md - subdirectory/*.html