Perhaps you should try some spelling variations:
"python using java slippery" » "python using data slippery"
"web ban van slippers" » "web bang van slippers", "web quan van slippers", "web ban dan slippers", "web ban va slippers", "web tan van slippers", "web ban van grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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 (\"web ban van slippers\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( python using java slippery ) OR ( web ban van slippers ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java slippery") OR ("web ban van slippers"))) OR ("locating bug code snippets"))*.