A "search bubble" is a fact of googling the same problem matter
repeatedly and google pre-empting your desired results. When searching for a subject, perhaps panda (mammal) and following links to zoos, further searches for panda (car) bucket seat, may present you with pandas
sitting on food buckets.
Many people have suffered search bubble symptoms when browsing
political news and find they only get search results for the parties that they follow regularly.