Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao khang do snippets" » "dao khong do snippets", "tao khang do snippets", "tao khoang do snippets", "dao khang voi snippets", "dao khang kho 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 khang 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: (((("dao khang do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao khang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao khang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.