Perhaps you should try some spelling variations:
"locating bugs code slippers" » "locating bugs code snippets", "locating bug code slippers"
"python using java slippery" » "python using data slippery"
"dung co dan snippets" » "dung cho dan snippets", "dung cong dan snippets", "dung cua dan snippets", "dung co ban snippets", "dung ca dan snippets", "dung cao dang 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 co dan snippets") or ("python using java slippery"))) or ("locating bugs code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung co dan snippets") OR ("python using java slippery"))) OR ("locating bugs code slippers")).
• Removing quotes may allow a broader search: (((( dung co dan snippets ) or ( python using java slippery ))) or ( locating bugs code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("dung co dan snippets") or ("python using java slippery"))) or ("locating bugs code slippers"))*.