Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan co du snippets" » "phan bo du snippets", "phan cong du snippets", "phan cac du snippets", "phan cho du snippets", "phan co dau snippets", "phan so du 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 co du 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 co du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan co du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan co du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.