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