A Keyword search on your topic will look for your search term in the entire bibliographic record for an item -- title, author, subject, chapter titles, etc. Search on: Mathematical Modeling
It is also helpful to know subject headings used for your topic so that you can do a Subject search. Always ask a librarian for help if you are not finding what you need. It may simply be a matter of figuring out the right terminology.
The subject headings used in WorldCat@SU are also used in many other databases. A number of examples of subject headings relevant to this class are below.