Perhaps you should try some spelling variations:
"lan chu duc slippery" » "lan thu duc slippery", "lan chua duoc slippery", "lan cuu duoc slippery", "lang chu duc slippery", "lam chu duc slippery", "lan chu duc slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using a snippets") or ("lan chu duc slippery"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using a snippets") OR ("lan chu duc slippery"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( python using a snippets ) or ( lan chu duc slippery ))) or ( locating bug code snippets ))*.