Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan dien co snippets" » "toan dien co snippets", "doan dieu co snippets", "doan thien co snippets", "doan dien cho snippets", "doan dien o snippets", "doan dien cu 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: (((("doan dien 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: (((("doan dien co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan dien co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan dien co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.