tiki-listpages.php
The setting in admin->wiki->wiki->list pages.
The perm is tiki_p_view
find
The find option filters on the pagename.
If you enter abc, it will search for the pages that have a name containing abc (for instance, the pages abcde, abc, wabc will be returned, but the page abxc will not)
If you enter 'abc efg' or 'abc, efg'(string containing different word), it will search for the pages with a name containing abc or efg or both (for instance 'abcee', 'xxabc zz yyefg'). If you want only the pages containing 'abc efg', you have to match exact match option.
It is possible to use wildcards in the find string:
% to match an arbitrary number of characters (including zero characters)
_ to match any single character
To match any special character precede it with \
Examples:
ab%c will return adbc, aeebcdd
a\%b will return a%bccc but not acb