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