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