Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao khong cu snippets" » "dai khong cu snippets", "dao khang cu snippets", "sao khong cu snippets", "dao khong co snippets", "dao khong tu 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: (((("dao khong cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao khong cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao khong cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao khong cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.