Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang dan ve snippets" » "dang dang ve snippets", "dang van ve snippets", "dung dan ve snippets", "dang ban ve snippets", "dang dan va snippets", "dang dan viet 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 dan ve 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 dan ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang dan ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang dan ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.