Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"muc duc hoan snippets" » "muc duc hoang snippets", "muc duc hoa snippets", "muc duc toan snippets", "muc dich hoan snippets", "nuoc duc hoan 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: (((("muc duc hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("muc duc hoan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( muc duc hoan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("muc duc hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.