Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ket con cua snippets" » "ket doan cua snippets", "diet con cua snippets", "giet con cua snippets", "ket cong cua snippets", "ket co cua snippets", "ket dong 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: (((("ket con 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: (((("ket con cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ket con cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ket con cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.