Perhaps you should try some spelling variations:
"rail projects case force" » "capital projects case force", "rail projects a force", "rail projects cable force", "rail projects use force"
"road projects case force" » "road projects a force", "road projects cable force", "road projects use force"
"_ project aid more" » "_ project aims more", "_ project a more", "_ project area more", "_ project aid model", "_ project find more"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("_ project aid more") or ((("rail projects case force") OR ("road projects case force"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("_ project aid more") OR ((("rail projects case force") OR ("road projects case force")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"_ project aid more\") or (((\"rail projects case force\") OR (\"road projects case force\"))))".
• Removing quotes may allow a broader search: (( _ project aid more ) or ((( rail projects case force ) OR ( road projects case force )))).
• Adding a wildcard symbol may retrieve word variants: (("_ project aid more") or ((("rail projects case force") OR ("road projects case force"))))*.