Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua pha du snippets" » "cua phap du snippets", "cua phan du snippets", "cua nha du snippets", "cua pham duc snippets", "cua pham duy snippets", "cua phan duc 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: (((("cua pha du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua pha du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua pha du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua pha du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.