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