Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers"
"dung co cau slippers" » "dung cho cau slippers", "dung cong cau slippers", "dung cua cau slippers", "dung bo cau slippers", "dung co cau slippery"
"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: (((("dung co cau slippers") or ("python using java grippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung co cau slippers") OR ("python using java grippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung co cau slippers ) or ( python using java grippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung co cau slippers") or ("python using java grippers"))) or ("locating bug code snippets"))*.