Perhaps you should try some spelling variations:
interface purification » interface specification, interface specifications, interfaces specification
purification program » verification program, certification program, purification problems
process microarray » proteins microarray, protein microarray, probe microarray
microarray https » microarrays https, microarray chips, microscopy https
program process » program progress, programs processes, program processing

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• Performing a fuzzy search may retrieve terms with similar spellings: interface purification program process microarray https~.
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