Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers", "python using java slippers"
"_ trinh thi slippery" » "_ trinh tai slippery", "_ dinh thi slippery", "_ trinh tu slippery", "_ tinh thi slippery", "n trinh thi slippery", "p trinh thi slippery", "_ trinh thi 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 grippers\") OR (\"_ trinh thi slippery\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( python using java grippers ) OR ( _ trinh thi slippery ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java grippers") OR ("_ trinh thi slippery"))) OR ("locating bug code snippets"))*.