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