Suppose you want to find documents about renewable energy sources.
Click
under the Global Search box.
You can construct a search query that searches for the phrase renewable energy sources in metadata:
You can expand this search to a full-text search by selecting Full Text & Metadata:

Suppose you want only documents with this topic in their title. In addition, you are interested in documents with the phrase sustainable energy systems in their title. You can look for either topic in the document title by using the OR operator as follows:

To limit this search to the journal articles and conference papers about power, energy, and industry applications, select the appropriate choices under Content Types and Topics.

Alternatively, instead of limiting the search at this point, you could refine the search results by Content Type, Topic, and other facets.