Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam so doi snippets" » "nam sao doi snippets", "nam bo doi snippets", "nam so do snippets", "nam so di snippets", "nam so dai 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: (((("nam so 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: (((("nam so doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam so doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam so doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.