Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang nam dep snippets" » "dong nam dep snippets", "dan nam dep snippets", "dung nam dep snippets", "dang lam dep snippets", "dang nam de snippets", "dang nao dep 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: (((("dang nam dep snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang nam dep snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang nam dep snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang nam dep snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.