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