Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho khan hoi snippets" » "khoa kham hoi snippets", "khoa than hoi snippets", "kho khoan hoi snippets", "kho phan hoi snippets", "kho khanh hoa 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: (((("kho khan hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kho khan hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho khan hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho khan hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.