Perhaps you should try some spelling variations:
interactions integer » interactions inter, interactions integrins, interactions index
integer programming » internet programming, linear programming
microarray https » microarrays https, microarray chips, microscopy https
part microarray » plant microarray, pcr microarray, partial microarray

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

• Performing a fuzzy search may retrieve terms with similar spellings: interactions integer programming part microarray https~.
• Adding a wildcard symbol may retrieve word variants: interactions integer programming part microarray https*.