Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nom van chu snippets" » "nam van chu snippets", "tom van chu snippets", "gom van chu snippets", "nom van chi snippets", "nom van phu snippets", "nom 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: (((("nom 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: (((("nom van chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nom van chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nom van chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.