Perhaps you should try some spelling variations:
"python using java slippers" » "python using data slippers", "python using java grippers"
"tu truc dan slippery" » "tu thuc dan slippery", "tu tuc dan slippery", "tu truc ban slippery", "cau truc dan slippery", "tu thuoc dan slippery", "tu trung dan 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: (((("tu truc 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: (((("tu truc dan slippery") OR ("python using java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tu truc dan slippery ) or ( python using java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tu truc dan slippery") or ("python using java slippers"))) or ("locating bug code snippets"))*.