Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con cho deu snippets" » "cong cho deu snippets", "ton cho deu snippets", "con chi deu snippets", "con cho dieu snippets", "con cho du 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: (((("con cho deu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con cho deu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con cho deu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con cho deu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.