Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi do long snippets" » "doi do luong snippets", "doi do hong snippets", "doi do cong snippets", "doi bo long snippets", "doi co long snippets", "doi de long 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 do long 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 do long snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi do long snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi do long snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.