Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam lich can snippets" » "nam linh can snippets", "nom lich can snippets", "nam dinh can snippets", "nam dich can snippets", "nam lich han snippets", "nam tich can 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 lich can 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 lich can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam lich can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam lich can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.