Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc ngo ca snippets" » "luc ngu ca snippets", "duc ngoc ca snippets", "duc ngon ca snippets", "luc ngo cua snippets", "luc ngo ha snippets", "luc ngo 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: (((("luc ngo ca 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 ngo ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc ngo ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc ngo ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.