Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan cho ve snippets" » "danh cho ve snippets", "san cho ve snippets", "dac cho ve snippets", "dan cho he snippets", "dan nho ve snippets", "dan cho va 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 cho 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: (((("dan cho ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan cho ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan cho ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.