[Link] The USPTO has published a set of Search Templates for each of its technology classifications. The templates define the resources and methodologies for conducting a search.
It appears that Applicants attempting to request a Petition to Make Special based on a prior art search by the applicant (MPEP § 708.02) should follow the template associated with the expected classification of the invention.
The PTO is also requesting help with updating the templates with additional resources or removing resources that are not useful. E-mail comments to STIC-SearchTemplate@uspto.gov.