Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khac con cho snippets" » "khac co cho snippets", "khac son cho snippets", "khach cong cho snippets", "khac cong cho snippets", "khac ton cho snippets", "khac con chi 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 con cho 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 con cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khac con cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khac con cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.