Perhaps you should try some spelling variations:
"require high coverage" » "required high coverage" (Expand Search), "require high average" (Expand Search)
"requires high coverage" » "requireds high coverage" (Expand Search), "requires high average" (Expand Search), "required high coverage" (Expand Search)
"requiredds high coverage" » "requireddds high coverage" (Expand Search), "requiredds high average" (Expand Search), "required high coverage" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("require high coverage") OR ((("requires high coverage") OR ("requiredds high coverage"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"require high coverage\") OR (((\"requires high coverage\") OR (\"requiredds high coverage\"))))*".
• Removing quotes may allow a broader search: (( require high coverage ) OR ((( requires high coverage ) OR ( requiredds high coverage ))))*.