Use the minus sign to eliminate results containing certain words

You may want to eliminate results with certain words if you are trying to search for a term that is generating a lot of results that are not relevant to you. Figure out what term(s) you are not interested in and add it to your query (e.g. mouse -rodent) and re-run the search.
In the example above, take note that a space has been added ahead of the minus sign between 'eden' and 'roskill' which results in Google Search excluding sites that contain 'roskill'.