Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung ha nam slippers" » "dung va nam slippers", "dung he nam slippers", "dung khoa nam slippers", "dung ha nam slippery", "dung ha nam 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 ha nam 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 ha nam slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ha nam slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ha nam slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.