Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao khoe cho snippets" » "dao khong cho snippets", "lao khoa cho snippets", "dao ho cho snippets", "dao khien cho snippets", "dao khoe cham snippets", "dao hoc cho 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 khoe cho 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 khoe cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao khoe cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao khoe cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.