Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nao nu doi snippets" » "nam nu doi snippets", "nao mu doi snippets", "nao tu doi snippets", "nao neu doi snippets", "nao nu doc 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: (((("nao nu 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: (((("nao nu doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nao nu doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nao nu doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.