Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai cua den snippets" » "thai cua den snippets", "hoi cua den snippets", "dai cua den snippets", "hai cua dan snippets", "hai cua nen snippets", "hai cua dang 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: (((("hai cua den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai cua den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai cua den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai cua den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.