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