Perhaps you should try some spelling variations:
"ca dan canh snippets" » "ca dan code snippets", "ca van canh snippets", "ca dan cach snippets", "ca dan hanh snippets", "cac dan canh snippets", "ca dao canh snippets"
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data 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: (((("ca dan canh snippets") or ("python using data snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ca dan canh snippets") OR ("python using data snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( ca dan canh snippets ) or ( python using data snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("ca dan canh snippets") or ("python using data snippets"))) or ("locating bug code slippers"))*.