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