Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gia doan do snippets" » "giai doan do snippets", "gia dau do snippets", "gia nhan do snippets", "gia doan o snippets", "gia toan do snippets", "gia doanh dao 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: (((("gia doan 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: (((("gia doan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gia doan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gia doan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.