Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoan va du snippets" » "khoan va du snippets", "hoang va du snippets", "doan va du snippets", "hoan va dau snippets", "hoan va su snippets", "hoan va tu 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: (((("hoan va 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: (((("hoan va du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoan va du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoan va du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.