Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java slippery" » "python using data slippery", "python using java slippers"
"den tran van grippers" » "den tuan van grippers", "den thanh van grippers", "dang tran van grippers", "den luan van grippers", "den tran van 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 ("den tran van grippers"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java slippery") OR ("den tran van grippers"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java slippery ) or ( den tran van grippers ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java slippery") or ("den tran van grippers"))) or ("locating bug core snippets"))*.