When searching for sources, use your keywords, do not type in whole sentences.
There is no one 'correct' search word to use. Different keywords will give you more results. Think of words that mean the same or something similar as your topic and try those words too. E.g. Volcanic Activity, Volcanoes, Eruption
You may need to broaden or narrow your search terms depending on your results :
Broader Search: Agriculture instead of Farms
Narrower Search: Reservoir instead of Water
Use the asterisk * to truncate words and widen your search. Volcan* will search for Volcano, Volcanic and Volcanism
Use quotation marks to keep phrases together: e.g. "North American Tectonic Plate" "Geothermal Energy"
Try your search terms in different combinations to get the greatest number of results.
