Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan va ton snippets" » "doan va toan snippets", "doan va tong snippets", "doan va tin snippets", "doanh va ton snippets", "dan va ton snippets", "toan va ton 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 ton 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 ton snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan va ton snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan va ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.