Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao khau can snippets" » "dao phat can snippets", "dao huu can snippets", "cau khau can snippets", "dao hau can snippets", "dao khau dan snippets", "dao khau cao 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 khau can 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 khau can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao khau can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao khau can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.