Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung ly dong snippets" » "dung le dong snippets", "dung la dong snippets", "dung lam dong snippets", "dung ly dung snippets", "dung lao dong snippets", "dung huy dong 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: (((("dung ly dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung ly dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ly dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ly dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.