Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers"
"tao trinh su slippers" » "tao tinh su slippers", "tho trinh su slippers", "giao trinh su slippers", "tao trinh tu slippers", "tao trinh san slippers", "tao trinh cau slippers", "tao trinh su slippery"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java grippers") or ("tao trinh su slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java grippers") OR ("tao trinh su slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java grippers ) or ( tao trinh su slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java grippers") or ("tao trinh su slippers"))) or ("locating bug code snippets"))*.