Perhaps you should try some spelling variations:
"python using java slippers" » "python using data slippers", "python using java grippers"
"cau thuc dan slippery" » "cau truc dan slippery", "cuu thuc dan slippery", "can thuc dan slippery", "cau thuc hanh slippery", "cau hoc dan slippery", "cau thuc vat slippery"
"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 thuc dan slippery") or ("python using java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cau thuc dan slippery") OR ("python using java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau thuc dan slippery ) or ( python using java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau thuc dan slippery") or ("python using java slippers"))) or ("locating bug code snippets"))*.