There is no perfect way to find linguistic grammars in a library. One of the better ways is to search for resources by SUBJECT.
From the library homepage, select the "Advanced Search" option.
Change the pull down menu from "Keyword" and choose "Subject". This tells the catalogue to find items where your search words are the subject of the content, not just words out of context.
In the search box, type in the [name of the language] AND grammar. In the example below, I have asked the catalogue to find Hebrew language grammars.
Grambank database currently covers 2,467 language varieties, capturing a wide range of grammatical phenomena in 195 features, from word order to verbal tense, nominal plurals, and many other well-studied comparative linguistic variables. Grambank's coverage spans 215 different language families and 101 isolates from all inhabited continents.