Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan xu chat snippets" » "nhan su chat snippets", "nhan luc chat snippets", "nhanh tu chat snippets", "nhan xu phat snippets", "nhan du chat snippets", "nhan vu 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: (((("nhan xu 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: (((("nhan xu chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan xu chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan xu chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.