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