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