Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi mo chon snippets" » "khai mo chon snippets", "khi mo chon snippets", "khoe moi chon snippets", "khoi mo cho snippets", "khoi mo phong 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: (((("khoi mo chon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoi mo chon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi mo chon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi mo chon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.