Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luoc dan de snippets" » "luoc danh de snippets", "luoc dai de snippets", "luoc can de snippets", "luoc dan den snippets", "luoc dang de snippets", "luoc van de 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: (((("luoc dan de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luoc dan de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luoc dan de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luoc dan de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.