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