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