Perhaps you should try some spelling variations:
introduction conception » introduction concession, introduction congestion, introduction consumption
conception programming » conventions programming, concepts programming, computation programming
programming expression » reprogramming expression, programming expressive, programming extension
microarray https » microarrays https, microarray chips, microscopy https

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• Performing a fuzzy search may retrieve terms with similar spellings: introduction conception programming expression microarray https~.
• Adding a wildcard symbol may retrieve word variants: introduction conception programming expression microarray https*.