Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong cua vat slippers" » "cong cu vat slippers", "dong cua vat slippers", "huong cua vat slippers", "cong cua vat slippery", "cong cua 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: (((("cong cua vat slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong cua vat slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong cua vat slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cua vat slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.