Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan guo hoac snippets" » "dan gio hoac snippets", "dan ngua hoac snippets", "dan gio hoc snippets", "dan quoc hoac snippets", "dan giao hoac snippets", "dan nuoi hoac 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 guo hoac 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 guo hoac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan guo hoac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan guo hoac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.