Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lai nam doan snippets" » "lai nam dan snippets", "lai sam doanh snippets", "lai tap doan snippets", "loai nam doan snippets", "hai nam doan snippets", "mai nam doan 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: (((("lai nam doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lai nam doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lai nam doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lai nam doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.