Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"from eu doi snippets" » "from e doi snippets", "from bee doi snippets", "from neu doi snippets", "from tu doi snippets", "from nu doi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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