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"
"dao tao luan snippets" » "dao dao luan snippets", "dao tang luan snippets", "dao tao thuan snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dao tao luan snippets") or ("python using java slippery"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao tao luan snippets") OR ("python using java slippery"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( dao tao luan snippets ) or ( python using java slippery ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("dao tao luan snippets") or ("python using java slippery"))) or ("locating bug code slippers"))*.