Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con cua me snippets" » "cong cua me snippets", "co cua me snippets", "dong cua me snippets", "con cua mes snippets", "con cha me snippets", "con ca me 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: (((("con cua me snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con cua me snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con cua me snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con cua me snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.