Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mat dong cho snippets" » "mat duong cho snippets", "bat dong cho snippets", "mac dong cho snippets", "mat dung cho snippets", "mat dong co snippets", "mat dong hoc 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 dong cho 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 dong cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mat dong cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat dong cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.