Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau do vo snippets" » "cau do vo snippets", "dau co vo snippets", "dao do vo snippets", "dau do voi snippets", "dau do bo snippets", "dau do va 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: (((("dau do vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau do vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau do vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau do vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.