Perhaps you should try some spelling variations:
"python using java slippery" » "python using data slippery"
"cau truc van slippers" » "cau truc va slippers", "cau thuc van slippers", "cau truc ban slippers", "cau truc van grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cau truc van slippers") or ("python using java slippery"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cau truc van slippers") OR ("python using java slippery"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau truc van slippers ) or ( python using java slippery ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau truc van slippers") or ("python using java slippery"))) or ("locating bug code snippets"))*.