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