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