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