Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan su hoat snippets" » "phan suc hoat snippets", "phan tu hoat snippets", "nhan su hoat snippets", "phan su hoan snippets", "phan su hoa snippets", "phan vu hoat 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 su hoat 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 su hoat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan su hoat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan su hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.