Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giai doan ve snippets" » "giai doan va snippets", "giai doan vi snippets", "giai toan ve snippets", "giao doan ve snippets", "gia doan ve snippets", "gian doan ve 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: (((("giai doan ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giai doan ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giai doan ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giai doan ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.