How can I display search "excerpts" from multiple sections?
There is no way at present to delegate a field as the search excerpt field in Craft, so it needs to be handled by the search results template. It is possible to use conditionals but this can bloat the template, especially when there are multiple sections and each section outputs different fields in different ways, so I prefer to create dedicated search excerpt templates and include them in the search results template as follows:

{% include ['_search-excerpts/' ~ entry.section.handle, '_search-excerpts/default'] %}


The above code will render the section's dedicated search excerpt template if it exists in a folder called _search-excerpts, otherwise it will render the default search excerpt template which can contain for example:

&lt;a href="{{ entry.url }}"&gt;{{ entry.title }}&lt;/a&gt;


The resulting folder structure would then look like this:

_search-excerpts/default.html
_search-excerpts/sectionA.html
_search-excerpts/sectionB.html
_search-excerpts/sectionC.html