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