Google is able to search quickly and accurately due to several factors:

1. Indexing: Google uses automated software known as "spiders" or "bots" to crawl billions of web pages and index their content. This allows Google to quickly find relevant information when a user searches for something.

2. The PageRank Algorithm: Google's original PageRank algorithm analyzes the relationships between different pages on the web to determine the relative importance of each page. This information is used to rank pages in search results.

3. Keyword Matching: When a user conducts a search, Google matches the keywords in the user's query to the indexed pages to find the most relevant results.

4. Machine Learning: Google uses machine learning algorithms to continuously improve its search results. This includes understanding natural language queries, providing relevant content and personalizing results based on a user's search history.

5. Data Centers: Google operates a global network of data centers that allow it to search the web quickly and efficiently.

Besides these, the company also continually invests in research and development to improve its search results.
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