Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan san vo snippets" » "nhan dan vo snippets", "nhan van vo snippets", "nha san vo snippets", "nhan san co snippets", "nhan san va snippets", "nhan san ho 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: (((("nhan san 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: (((("nhan san vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan san vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan san vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.