Google Advanced Search (LINK) is an awesome resource for the researcher, particularly now that more and more scanned documents are showing up online and being scanned/indexed by Google’s OCR engine.
Here’s how you use it:
In the SITE OR DOMAIN field, enter these possible links:
NTRS (NASA Technical Reports
Alternately, here’s a pre-laid out search string for Google:
"Titan 34" site:www.dtic.mil/dtic/tr/fulltext/ filetype:pdf
This will search DTIC for anything that is a PDF document that contains the string “Titan 34”.
Likewise, this string works for NTRS:
"Intermediate" site:http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/ filetype:pdf