Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han danh hoi snippets" » "van danh hoi snippets", "phan dang hoi snippets", "nhan dang hoi snippets", "han danh hoa snippets", "han dan hoi snippets", "han danh hoc 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: (((("han danh hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han danh hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han danh hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han danh hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.