Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khoan viet da snippets" » "khoan viet code snippets", "hoa viet da snippets", "thon viet da snippets", "han viet da snippets", "khoan viet dao snippets", "khoan viet dat snippets", "khoan viet ha snippets"
"python using sat snippets" » "python using data snippets", "python using a snippets", "python using raw 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: (((("khoan viet da snippets") or ("python using sat snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoan viet da snippets") OR ("python using sat snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( khoan viet da snippets ) or ( python using sat snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoan viet da snippets") or ("python using sat snippets"))) or ("locating bug core snippets"))*.