Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java slippery" » "python using data slippery"
"ke dan zhang slippers" » "ke yan zhang slippers", "ke lidan zhang slippers", "ke danh thang slippers", "le dan zhang slippers", "ke dan zhang grippers"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("ke dan zhang slippers") OR ("python using java slippery"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"ke dan zhang slippers\") OR (\"python using java slippery\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( ke dan zhang slippers ) OR ( python using java slippery ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ke dan zhang slippers") OR ("python using java slippery"))) OR ("locating bug core snippets"))*.