Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi mo te snippets" » "khai mo te snippets", "khi mo te snippets", "khoe moi te snippets", "khoi mo de snippets", "khoi mo ta 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 te 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 te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi mo te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi mo te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.