Perhaps you should try some spelling variations:
generalised regression » generalized regression, general regression, generalised autoregressive
structures microscopy » structure microscopy, structure microscopic, structure spectroscopy
regression program » progression program, progression programs, regression problem
program structures » program structure, protein structures
https » http

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: generalised regression program structures microscopy https~.
• Adding a wildcard symbol may retrieve word variants: generalised regression program structures microscopy https*.