The ProQuest version of MEDLINE opens to a single search bar. You may use that, especially for keyword searches, but if you click the link for the advanced search, you will be able to specify your searches in some other ways. 

Above the advanced search boxes are choices, such as the Thesaurus, which gets you to MeSH terms, or the Command Line, which allows very complex searches, including proximity operators like NEAR and > or <.

The choice of limiting to peer-reviewed and to types of subjects (human or animal, and by gender) is prominent under the advanced search box.

MEDLINE via ProQuest also gives dropdown menus to allow limits to certain fields, such as author, title, date, and MeSH terms in the second box to the right of each search box. ProQuest MEDLINE includes in the dropdown menus the combination search or field search of title and abstract [TIAB]. which is very useful for building searches for systematic reviews.  It shows under *document title and abstract* in the dropdown menu.

You can also type it in vs. selecting the field search tiab(program evaluation) AND tiab(substance abuse).

Below this search box are the various limiters, such as type of article, language, age levels, where the articles are in the publication cycle, and the like. There are more than I could capture here. Evidence-based healthcare is under document type.