Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao benh cua snippets" » "duoc benh cua snippets", "tai benh cua snippets", "so benh cua snippets", "dao benh chua snippets", "dao menh cua snippets", "dao benh luan 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: (((("dao benh cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao benh cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao benh cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao benh cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.