How to use keywords when researching

Why use keywords?

Using keywords when researching can help finding the key information you are looking for so then you are getting clearer information which is much more useful. This technique is successful because I found exactly what I needed when researching.

I searched for 'costs of short film' and I found the exacted book that is really useful and the one I wanted to reference from.
Source[ONLINE]: https://books.google.co.uk/books?id=7dKTBwAAQBAJ&pg=PA331&dq=costs+of+short+films&hl=en&sa=X&ved=0CCkQ6AEwAGoVChMIoIao-s74xwIVSboaCh21uAwE#v=onepage&q&f=false