Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khac co don snippets" » "khac do don snippets", "khac mo don snippets", "khao co don snippets", "khac co dong snippets", "khac co dan snippets", "khac co dot 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: (((("khac co don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khac co don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khac co don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khac co don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.