Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh tu don snippets" » "anh tu don snippets", "danh tu don snippets", "hanh tu dong snippets", "hanh tu do snippets", "hanh tu den 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: (((("hanh tu don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh tu don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh tu don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh tu don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.