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