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