Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mat cho con snippets" » "dat cho con snippets", "mai cho con snippets", "mat co con snippets", "mat cho cong snippets", "mat cho lon snippets", "mat cho 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: (((("mat cho con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mat cho con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mat cho con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat cho con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.