Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat cong de snippets" » "thuat cong de snippets", "luat chung de snippets", "cua cong de snippets", "luat cong da snippets", "luat cong ve snippets", "luat 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: (((("luat 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: (((("luat cong de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat cong de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat cong de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.