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