Perhaps you should try some spelling variations:
quantitative observations » quantitative observation, qualitative observation, quantitative applications
quantitative conservation » quantitative observation, quantitative information, quantitative estimation
https microarray » data microarray, cells microarray, chip microarray
microarray chips » microarray chip, microarrays chip, microarray cross

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((quantitative observations) OR (quantitative conservation)) programs https microarray chips~".
• Adding a wildcard symbol may retrieve word variants: ((quantitative observations) OR (quantitative conservation)) programs https microarray chips*.