Perhaps you should try some spelling variations:
"cua dau lanh slippery" » "cua cau lanh slippery", "cua dat lanh slippery", "cua dau tranh slippery", "chua dau lanh slippery", "cua dan lanh slippery", "cua dai lanh slippery", "cua dau lanh 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"

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: (((("cua dau lanh slippery") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua dau lanh slippery") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua dau lanh slippery ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua dau lanh slippery") or ("python using a snippets"))) or ("locating bug code snippets"))*.