Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam trong da snippets" » "nam trung da snippets", "cay trong da snippets", "nam trong dam snippets", "nam trong dan snippets", "nam trong dao 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 trong da 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 trong da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam trong da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam trong da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.