Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan ve he snippets" » "ban ve he snippets", "dan va he snippets", "dan viet he snippets", "dan ve che snippets", "dan ve khe snippets", "dan ke he 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: (((("dan ve he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan ve he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan ve he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan ve he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.