Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi len so snippets" » "doi gen so snippets", "doi dien so snippets", "cuoi len so snippets", "doi len se snippets", "doi lien son 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: (((("doi len so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi len so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi len so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi len so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.