Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua moi da snippets" » "cua mot da snippets", "cua hoi da snippets", "cua moi dan snippets", "cua moi la snippets", "cua moi va 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 moi da 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 moi da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua moi da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua moi da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.