Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat viet da snippets" » "luat viet dao snippets", "luat viet dat snippets", "luat viet ha snippets", "luan viet da snippets", "xuat viet da 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: (((("luat viet 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: (((("luat viet da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat viet da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat viet da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.