How to refine a Google search
Exclude words from your search
Put - in front of a word you want to leave out. For example, jaguar speed -car
Make sure a particular word is included
Put + in from of a word you want to include. For example, jaguar speed +car
Search for an exact match
Put a word or phrase inside quotes. For example, "tallest building".
Combine searches
Put OR between each search query. For example, marathon OR race.