Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan va cuc snippets" » "doan va cuoc snippets", "doan van cuc snippets", "doan va cac snippets", "doanh va cuc snippets", "dan va cuc snippets", "toan va cuc 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: (((("doan va cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan va cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan va cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan va cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.