Perhaps you should try some spelling variations:
intersections python » intersections without, intersection method, intersections non
python programme » python program, python programs, python programming
microarray chip » microarray cgh, microarrays case, microarrays cell
pcr microarray » _ microarray, dna microarray, a microarray
programme pcr » programme part, programme gcp, programme paper

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

• Performing a fuzzy search may retrieve terms with similar spellings: intersections python programme pcr microarray chip~.
• Adding a wildcard symbol may retrieve word variants: intersections python programme pcr microarray chip*.