Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"day quan den snippets" » "dan quan den snippets", "dao quan den snippets", "dap quan den snippets", "day quan doan snippets", "day quan he snippets", "day 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: (((("day 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: (((("day quan den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( day quan den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("day quan den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.