Perhaps you should try some spelling variations:
"nhan thuc can snippets" » "nhan luc can snippets", "dan thuc can snippets", "toan thuc can snippets", "nhan thuc chan snippets", "nhan thuc dan snippets", "nhan thuc van snippets"
"python using sat snippets" » "python using data snippets", "python using a snippets", "python using raw snippets"
"locating bug code snippets" » "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: (((("nhan thuc can snippets") or ("python using sat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan thuc can snippets") OR ("python using sat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan thuc can snippets ) or ( python using sat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan thuc can snippets") or ("python using sat snippets"))) or ("locating bug code snippets"))*.