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