How to search the catalogue
You have several options available for searching the database. Click the downward arrow in OPAC search box. You will get the options, e.g. Author, Title, Subject so on. Select the one you require and proceed to the next step.
In the search box type the name of topic you want to search on e.g. tracheostomy.
You will find the catalogue of all the documents on tracheostomy. Now if you want to know the books on tracheostomy by any particular author then go to advanced search. There you will get options to relate different keywords e.g. Author and subject, Title and subject so on.