Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung ca ke snippets" » "dung cua ke snippets", "dung cac ke snippets", "dung cam ke snippets", "dung ca ve snippets", "dung ca me 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 ca ke 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 ca ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ca ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ca ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.