Google and other wide-ranging search engines index millions of web pages, many of which are free and do not use any form of quality control. Whilst these are useful tools they need to be used with care and awareness.
The online resources that the Library provides have been selected and purchased by University staff to support your studies. The databases we subscribe to contain bibliographic details for pre-evaluated material; many journal articles will have been peer-reviewed (reviewed by other academics prior to publication). We also evaluate websites on our 'Subject information' pages to ensure that the sites we link to are of a consistent high quality and that they appropriate to each department.
As well as using an appropriate resource, it is also important to ensure you plan your search effectively to help you find relevant results; further details and online tutorials can be found on the Library's 'Finding information: tips on searching' web page.
For more information:
https://www.dur.ac.uk/library/resources ... databases/