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)
"requiresds high coverage" » "requiressds high coverage" (Expand Search), "requiresds high average" (Expand Search), "requires 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 ("required high coverage"))) OR ("requiresds high coverage"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"require high coverage\") OR (\"required high coverage\"))) OR (\"requiresds high coverage\"))*".
• Removing quotes may allow a broader search: (((( require high coverage ) OR ( required high coverage ))) OR ( requiresds high coverage ))*.