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