Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"from e trac snippets" » "from eu trac snippets", "from _ trac snippets", "from a trac snippets", "from e trach snippets", "from e tran snippets", "from e tac snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("from e trac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( from e trac snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("from e trac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.