Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan do thi slippers" » "luan doi thi slippers", "luan de thi slippers", "tuan do thi slippers", "luan do thi slippery", "luan do thi 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 do thi 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 do thi slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan do thi slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan do thi slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.