Perhaps you should try some spelling variations:
"require high coverage" » "required high coverage" (Expand Search), "requires high coverage" (Expand Search)
"requireds high average" » "requiredds high average" (Expand Search), "requiresds high average" (Expand Search), "required high average" (Expand Search), "requires high average" (Expand Search)
"require higher coverage" » "required higher coverage" (Expand Search), "requires higher 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 ((("requireds high average") OR ("require higher coverage"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"require high coverage\") OR (((\"requireds high average\") OR (\"require higher coverage\"))))".
• Removing quotes may allow a broader search: (( require high coverage ) OR ((( requireds high average ) OR ( require higher coverage )))).
• Adding a wildcard symbol may retrieve word variants: (("require high coverage") OR ((("requireds high average") OR ("require higher coverage"))))*.