Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan hanh tu slippers" » "luan thanh tu slippers", "luan han tu slippers", "luan danh tu slippers", "luan anh tu slippers", "luan hanh tu slippery", "luan hanh 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 hanh 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 hanh tu slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan hanh tu slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan hanh tu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.