Unlike the general databases, literature (or any subject) specific databases generally focus solely on journal articles as a publication type and do not have a broad, multidisciplinary approach.
General databases contain content from a variety of subject areas as well as a number of different publication types. They will allow you to look at your topic from a wide perspective.
Be sure to use the search refinements each database may offer, including: date, document type, and source type.
Here are tips for better search results in databases. This usage works on most databases, but check 'Help' sections for supported search syntax.
Boolean: (using operators: and, or, not)
mother and father searches for occurrences of both words within scope defined.
mother or father searches for one or all, but both are not required.
mother not father searches for occurrences of the word ‘mother’ without use of the word ‘father.’
(mother not father) and god searches for occurrences of the word ‘mother’ without use of the word ‘father,’ then also requires the word ‘god.’
art* searches for art, arts, artistic, artful, etc.
m?n searches for man and men.