Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam khang ca snippets" » "nam thang ca snippets", "nam khanh ca snippets", "nam thanh ca snippets", "nam hang ca snippets", "nam khang a snippets", "nam khang cu 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: (((("nam khang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nam khang ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam khang ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam khang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.