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