Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc cong coc snippets" » "duc cuong coc snippets", "dung cong coc snippets", "nuoc cong coc snippets", "duc cong cuoc snippets", "duc cong cac snippets", "duc cong co 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 cong coc 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 cong coc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc cong coc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc cong coc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.