Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chang hai so snippets" » "hang hai so snippets", "chan hai so snippets", "chang ha so snippets", "chang dai so snippets", "chang tai so snippets", "chang thai son 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: (((("python using java snippets") or ("chang hai so snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("chang hai so snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( chang hai so snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("chang hai so snippets"))) or ("locating bug code snippets"))*.