Perhaps you should try some spelling variations:
quantitative observations » quantitative observation, qualitative observation, quantitative conservation
observations programs » observation programs, conservation programs, observations problems
https microarray » data microarray, cells microarray, chip microarray
microarray https » microarrays https, microarray chips, microscopy https

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• Performing a fuzzy search may retrieve terms with similar spellings: quantitative observations programs https microarray https~.
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