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