Perhaps you should try some spelling variations:
"gas projects aid work" » "_ projects aid work", "gas project aid work", "gas projects a work", "gas projects case work", "gas projects paid work"
"road projects aid work" » "road project aid work", "road projects a work", "road projects case work", "road projects paid work"
"_ project based force" » "_ project based free", "_ project based divorce"

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

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