Perhaps you should try some spelling variations:
pollutants dispersion » pollution dispersion
pollutants detection » pollution detection, pollutants degradation
pollutant dimension » pollutant diffusion, pollution dimensions, pollutant emission
dimension reduction » dimensionality reduction

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

• If you are trying to use Boolean operators, they must be ALL CAPS: "((\"pollutant dimension reduction\") or (\"((((pollutants dispersion) OR (pollutants detection))) OR (pollutant dispersion)) reduction\"))".
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"((\\"pollutant dimension reduction\\") or (\\"((((pollutants dispersion) OR (pollutants detection))) or (pollutant dispersion)) reduction\\"))\"".
• Removing quotes may allow a broader search: (( pollutant dimension reduction ) or ( ((((pollutants dispersion) OR (pollutants detection))) or (pollutant dispersion)) reduction )).