Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc toc hoc snippets" » "duc ton hoc snippets", "duc hoc hoc snippets", "duc ngoc hoc snippets", "duc toan hoc snippets", "duc duoc hoc 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 toc hoc 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 toc hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc toc hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc toc hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.