Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc ngu noi snippets" » "tuc ngu noi snippets", "luc ngo noi snippets", "muc ngu noi snippets", "luc nu noi snippets", "luc ngu nguoi snippets", "luc nguoi noi 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: (((("luc ngu noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc ngu noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc ngu noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc ngu noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.