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