Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhe cac can snippets" » "he cac can snippets", "nghe cao can snippets", "nghe cnc can snippets", "nhe cac dan snippets", "nhe cac van snippets", "nhe cac ban 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: (((("nhe cac 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: (((("nhe cac can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhe cac can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhe cac can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.