Perhaps you should try some spelling variations:
detection detection » reaction detection, mutation detection
detection methods » detection method, extraction methods, collection methods
methods directive » methods directions, methods direct, methods effective
array sharing » array string, arrays bearing, array imaging
array arcing » array forming, array probing, array using

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

• Performing a fuzzy search may retrieve terms with similar spellings: detection detection methods directive ((((array arcing) or (array sharing))) or (array format))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: detection detection methods directive ((((array arcing) OR (array sharing))) OR (array format)).
• Adding a wildcard symbol may retrieve word variants: detection detection methods directive ((((array arcing) or (array sharing))) or (array format))*.