When using library resources, it's usually best to pick out the main concepts of your topic and search by using these (referred to as keywords), instead of a sentence or question. Consider which parts of your topic are essential, and use those.
When looking for keywords, focus on nouns and noun phrases; these are more effective search terms. Ignore verbs and words like influenced, affected, etc.
Here are some examples of keywords:
- hybrid cars
- fuel efficiency
- trucks
You can also combine two or more keywords with the connecting word AND:
- cars AND paint
- autonomous vehicles AND laws
- fuel efficiency AND SUVs