Perhaps you should try some spelling variations:
"require high coverage" » "required high coverage" (Expand Search), "requires high coverage" (Expand Search)
"requiresd high coverage" » "requiredsd high coverage" (Expand Search), "requiressd high coverage" (Expand Search), "required high coverage" (Expand Search), "requires high coverage" (Expand Search)
"requiresd high average" » "requiredsd high average" (Expand Search), "requiressd high average" (Expand Search), "required high average" (Expand Search), "requires high average" (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: "((\"require high coverage\") OR (((\"requiresd high coverage\") OR (\"requiresd high average\"))))~".
• Removing quotes may allow a broader search: (( require high coverage ) OR ((( requiresd high coverage ) OR ( requiresd high average ))))~.
• Adding a wildcard symbol may retrieve word variants: (("require high coverage") OR ((("requiresd high coverage") OR ("requiresd high average"))))*.