Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua ke don snippets" » "cua ky don snippets", "cua te don snippets", "bua ke don snippets", "cua ke dan snippets", "cua ke do snippets", "cua ke doc 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: (((("cua ke don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua ke don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua ke don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua ke don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.