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