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

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