The California code sets also contain indexes that you can use to find code sections by topic. If using LexisNexis Academic, start typing in "Deering" in the main search box and the link to the Index will populate: CA - Deering's California Codes Annotated - Index.
When using the indexes, think creatively because your topic may not be listed under the first term(s) you search. Usually, when you look up a term in the index, there will be subheadings under the main heading that narrow the topic. Sometimes, there will also be cross-references to direct you to the appropriate terms to look up. If you find your topic in the index, it will link you to the relevant code(s) and section(s).