Perhaps you should try some spelling variations:
"python using sat slippers" » "python using data slippers", "python using a slippers", "python using raw slippers", "python using sat slippery", "python using sat grippers"
"danh ca code snippets" » "dan ca code snippets", "doanh cua code snippets", "danh cho code snippets", "danh cfd code snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code 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: (((("danh ca code snippets") or ("python using sat slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh ca code snippets") OR ("python using sat slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh ca code snippets ) or ( python using sat slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh ca code snippets") or ("python using sat slippers"))) or ("locating bug code snippets"))*.