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