Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers", "python using java slippers"
"n trinh cad slippery" » "n trinh cau slippery", "n trinh cac slippery", "n trinh cam slippery", "p trinh cad slippery", "anh trinh cad slippery", "dan trinh cad slippery", "n trinh cad 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: "((((\"n trinh cad slippery\") OR (\"python using java grippers\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( n trinh cad slippery ) OR ( python using java grippers ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("n trinh cad slippery") OR ("python using java grippers"))) OR ("locating bug code snippets"))*.