Perhaps you should try some spelling variations:
"pha cau do grippers" » "pha cau soft grippers", "phan cau do grippers", "phap cau do grippers", "pha cac do 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python using java slippery\") OR (\"pha cau do grippers\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( python using java slippery ) OR ( pha cau do grippers ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java slippery") OR ("pha cau do grippers"))) OR ("locating bug code snippets"))*.