Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan du chat snippets" » "dan duoc chat snippets", "dan dung chat snippets", "dan doc chat snippets", "dan dau chat snippets", "danh du chat snippets", "dan su chat 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: (((("dan du chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan du chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan du chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan du chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.