The only PDF result is found because the content processor reads two columns as a single line.

Now, search for: Assessment_of_C-band_synthetic_aperture.pdf "Delta-T Devices Ltd."

No results are found. While it's possible you might not mind the false positive reading across columns, users of Google's search expect it to be capable of differentiating between text in two columns of a PDF.

@Google is this something that can be fixed? I'm assuming it cannot, as it's been like this as far back as I can remember. Note that I rely on you everyday, and thank you immensely for your work.