There are many other search engines out there that you can use other than Google. Various sources estimate that only 10% of the information on the internet is indexed by search engines. The rest of the information is ‘hidden’ in what is called the invisible web or deep web. It is therefore important that if you are doing research, that you use a few different ones as each one may bring up different results.
The Search Engine List lists many types of search engines and internet indexing sites that you can try.
Here are a few you can try: