Perhaps you should try some spelling variations:
"python using java slippers" » "python using data slippers", "python using java slippery", "python using java grippers"
"hoi van luc snippets" » "hoi va luc snippets", "hoi dan luc snippets", "hai van luc snippets", "hoi van loc snippets", "hoi van duc snippets", "hoi van lu snippets"
"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: (((("python using java slippers") or ("hoi van luc snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java slippers") OR ("hoi van luc snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java slippers ) or ( hoi van luc snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java slippers") or ("hoi van luc snippets"))) or ("locating bug code snippets"))*.