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