Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dung thi ap slippers" » "dung tai ap slippers", "dung tri ap slippers", "dung chi ap slippers", "dung thi cap slippers", "dung thi dap slippers", "dung khi ap slippers", "dung thi ap slippery", "dung thi ap grippers"

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 ap slippers") or ("python using java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung thi ap slippers") OR ("python using java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung thi ap slippers ) or ( python using java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung thi ap slippers") or ("python using java snippets"))) or ("locating bugs code snippets"))*.