Perhaps you should try some spelling variations:
communication documentation » communication foundation, communication communication, communication conversation
documentation basic » documentation basics, documentation based, documentation asia
basic dimensions » based dimension, pacific dimensions, design dimensions
de rivero » de rivera, e rivera, l rivero
de riego » de riesgos

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication documentation basic dimensions ((((de rivero) OR (de vivero))) or (de riego))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication documentation basic dimensions ((((de rivero) OR (de vivero))) OR (de riego))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "communication documentation basic dimensions ((((de rivero) OR (de vivero))) or (de riego))*".