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