Within templates you can include placeholders for any template variables using [+name-of-TV+]. In addition you can use:

[+search.finds+] Total number of documents found (NOTE - if &searchMaxDocs used this will show the number displayed).
[+search.terms+] Search terms used. Note that search terms shorter than &searchMinLetters will not be displayed in this list as they are not used.
[+search.form+] (v 1.3) A new search form with the current search terms as the default values.
[+search.plural+] Inserts 's' if >1 document found. Can be used for ensuring that phrases such as "1 Documents found" do not appear.
[+search.result_posn+] Position in search results. Only for use in &tpl.
[+search.result_terms+] Shows terms found in individual documents if (and only if) more than one search term entered. Only for use in &tpl.
[+search.result_link+]... [+/link] Link to document. Only for use in &tpl.