Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan tap hoa snippets" » "dan thap hoa snippets", "han tap hoa snippets", "dan lap hoa snippets", "dan tap hop snippets", "dan tap doan snippets", "dan tap toan 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: (((("dan tap hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan tap hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan tap hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan tap hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.