Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat du chat snippets" » "luat dau chat snippets", "luat su chat snippets", "luat tu chat snippets", "luat duoc chat snippets", "luat dung chat snippets", "luat doc 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: (((("luat 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: (((("luat du chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat du chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat du chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.