Perhaps you should try some spelling variations:
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"python using java slippery" » "python using data slippery"
"ke yan zhang snippets" » "ke yang zhang snippets", "ke ban hang snippets", "ke van khang snippets", "ke dan zhang snippets", "ke san zhang snippets", "ke ban zhang 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: (((("ke yan zhang snippets") or ("python using java slippery"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ke yan zhang snippets") OR ("python using java slippery"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( ke yan zhang snippets ) or ( python using java slippery ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("ke yan zhang snippets") or ("python using java slippery"))) or ("locating bug code slippers"))*.