Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung vinh vo snippets" » "dang vinh vo snippets", "dung ninh vo snippets", "quang vinh vo snippets", "dung vinh van snippets", "dung vinh son snippets", "dung binh voi 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 vinh 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: (((("dung vinh vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung vinh vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung vinh vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.