Combine your search file filter

Pattern	Example: *my-bill*, *.xml accepts full filepath if there is: *my-bill* somewhere in the path or the full filepath ends with .xml
NOT Pattern	Like Pattern, but logically excluding if pattern matches
Text Files only	Textfiles (*.txt *.html *.xml *.css ....) Are user defined. Filter symbol is filled with green if enabled. There are some pre-defined file extension which are interpreted as UTF8 Textfiles. If some extensions are missing you can add within Configuration Dialog .
Time Stamp	Filter files by time. Before, After, Between and simply YEAR
File Size	Filter files by size. Smaller,Bigger,Between - understand kb,mb,gb or pure numbers
Hidden Files ( .xy )	Filenames start with '.'

Result of file searching process comes as a table of files which can be sorted by name,size or date.
A click on on entry opens the corresponding view.

---

Content Filter

Before you define your search pattern you should think about the scope.
Selection search scope from the combo box. 3 Scopes are File,Paragraph and Sentence.
If sentence scope work is depended on the text files. A C++ text file for example does not understand 'Sentence'.
A good choice mostly is Paragraph scope. A Paragraph is a line of characters ending with Linefeed (LF) or Carriage Return Linefeed. (CR LF)

Search by by simple pattern

Search by by regular expression