Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngu cac anh slippers" » "ngu ca anh slippers", "ngu cac banh slippers", "ngu cao anh slippers", "ngu cac anh slippery", "ngu cac anh 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 cac anh 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 cac anh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngu cac anh slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngu cac anh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.