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