Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam duoi cac snippets" » "dam cuoi cac snippets", "nam duoi cac snippets", "dam duong cac snippets", "dam duoc cac snippets", "dam duoi ca 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: (((("dam duoi cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dam duoi cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam duoi cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam duoi cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.