Perhaps you should try some spelling variations:
mechanical processing » mechanical properties (Expand search), mechanical testing (Expand search), mechanical harvesting (Expand search)
database mechanical » database technical (Expand search), damage mechanical (Expand search), disease mechanical (Expand search)
decrease ots » decrease its (Expand search), decrease costs (Expand search), decrease of (Expand search)
ots database » its database (Expand search), gis database (Expand search), ms database (Expand search)
decrease to » decreased to (Expand search), decrease toc (Expand search), decrease the (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease ots database mechanical processing ) OR ( decrease to decrease AND decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease ots database mechanical processing ) OR ( decrease to decrease AND decrease ))*.