Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong tuan da snippets" » "cong tan da snippets", "cong luan da snippets", "cong thanh da snippets", "cong tuan do snippets", "cong tuan dang snippets", "cong toan dam 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: (((("python using java snippets") or ("cong tuan da snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("cong tuan da snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( cong tuan da snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("cong tuan da snippets"))) or ("locating bug code snippets"))*.