Perhaps you should try some spelling variations:
interactions purification » interactions verification, interaction verification, interactions modification
purification programming » verification programming, specification programming, purification program
programming microarray » programming coarrays, programming microsoft
profiling microarray » profiling microrna, profiling micrornas, protein microarray

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: "interactions purification programming ((programming microarray) OR (profiling microarray)) chips~".
• Adding a wildcard symbol may retrieve word variants: interactions purification programming ((programming microarray) OR (profiling microarray)) chips*.