Perhaps you should try some spelling variations:
"python using data slippers" » "python using java slippers", "python using sat slippers", "python missing data slippers", "python using data grippers"
"cong co phi slippery" » "dong co phi slippery", "cong cu phi slippery", "cong so phi slippery", "cong co khi slippery", "cong co thi slippery", "cong ho phi slippery"
"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 data slippers\") OR (\"cong co phi slippery\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( python using data slippers ) OR ( cong co phi slippery ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using data slippers") OR ("cong co phi slippery"))) OR ("locating bug code snippets"))*.