Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bai cong de snippets" » "tai cong de snippets", "bi cong de snippets", "ban cong de snippets", "bai cong da snippets", "bai cong ve snippets", "bai cong dieu 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: (((("bai cong de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bai cong de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bai cong de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bai cong de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.