Google search results can change for several reasons. Here are a few possible factors that could have caused the change:
1. Algorithm Updates: Google frequently updates its search algorithms to improve the search experience for users. These updates might result in changes to the search results page layout, ranking criteria, and the way certain content is displayed.
2. Personalized Search: Google personalizes search results based on your previous search history, location, and other factors. It aims to provide more relevant results tailored to your interests. So, if your search behavior or location has changed, it can affect the search results you see.
3. User Feedback: Google takes user feedback seriously, and it uses feedback to refine its search algorithms. If users have reported certain search results as spammy or not relevant, Google may make changes to address those concerns, which could impact the search results you see.
4. Website Changes: Websites frequently update their content, structure, and SEO strategies. These changes can influence how Google's search algorithms evaluate and rank those sites. If a website you frequently visit has made significant changes, it may impact the search results related to that website.
5. Competitor Activities: Competitor websites might become more optimized for certain keywords or topics, affecting their rankings in search results. This could lead to changes in the overall search landscape, resulting in different results for your search queries.
6. Technological Advancements: Google continually invests in new technologies, like AI and natural language processing, to refine its search capabilities. These advancements can influence the way search results are generated and displayed.
Overall, Google search results are dynamic and can change for various reasons, aiming to improve user experience and deliver relevant and valuable information.