Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong mot le snippets" » "cong dot le snippets", "trong mot le snippets", "cong mong le snippets", "cong mot ke snippets", "cong mot de snippets", "cong mot he 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: (((("cong mot le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong mot le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong mot le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong mot le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.