Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho nghe co snippets" » "khoe nghe co snippets", "so nghe co snippets", "o nghe co snippets", "kho nghe che snippets", "kho nghe hoa snippets", "kho nghe noi 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 nghe co 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 nghe co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho nghe co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho nghe co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.