Perhaps you should try some spelling variations:
information documents » information documentation, information agents, information requirements
documents green » documents great, documents current, documents groove
green detection » region detection, green extraction
methods linda » methods linear, methods index, methods clinical
methods line » methods linear, methods blind, methods links
methods like » methods life, methods links, methods laue

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

• Performing a fuzzy search may retrieve terms with similar spellings: information documents green detection ((((methods line) OR (methods linda))) or (methods like))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information documents green detection ((((methods line) OR (methods linda))) OR (methods like)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "information documents green detection ((((methods line) OR (methods linda))) or (methods like))".
• Adding a wildcard symbol may retrieve word variants: information documents green detection ((((methods line) OR (methods linda))) or (methods like))*.