Perhaps you should try some spelling variations:
bioinformatics rough » bioinformatics high, bioinformatics from, bioinformatics 6th
state diffusion » surface diffusion
array arcing » array forming, array probing, array sharing
array string » array strong, arrays strings, array sharing
rough state » through state, through stat
array using » arrays using

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

• If you are trying to use Boolean operators, they must be ALL CAPS: bioinformatics rough state diffusion ((((array using) OR (array arcing))) OR (array string))~.
• Adding a wildcard symbol may retrieve word variants: bioinformatics rough state diffusion ((((array using) or (array arcing))) or (array string))*.