You can search for certain text within a project and view the search results in the Search view on the Workbench.

To use the Search feature

1. Select Search > File.
2. Specify the search criteria:
• Type the value to search in the Containing Text field. Use the * character to indicate wildcard string values, the ? character to indicate wildcard character values, and the \ character to indicate an escape character for literals (* ? /).
• Select Case Sensitive and indicate to the search function that it should take into account case when searching for appropriate string matches.
• Select Regular Expression to indicate to the search function that the string is a regular function.
• In the File Name Pattern field, specify the extension name of the files to search for explicitly.
  If the value in this field is a * character, the search function searches all files regardless of extension. Manually type in the extensions to indicate file type (separate multiple file types with commas), or click Choose and use the Select Types dialog to select the file extensions the process will search for the string by. 
• Select Consider Derived Resources to include derived resources in the search.
• Select Workspace or Working Set to choose the scope of the search. If you choose Working Set, specify the name of the defined working set manually, or click Choose and navigate to the working set you want to search for in the provided string.
3. Click Search. The results of your search are generated in the Search view on the Workbench.