Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan dang do snippets" » "dang dang do snippets", "dan dung do snippets", "da dang do snippets", "dan nang doc snippets", "dan dung doi snippets", "dan dang duc 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 dang do 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 dang do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan dang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan dang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.