Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cam quan den snippets" » "cao quan den snippets", "ca quan den snippets", "cai quan den snippets", "cam quan doan snippets", "cam quan he snippets", "cam quan doi 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: (((("cam quan den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cam quan den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cam quan den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cam quan den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.