Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc hang loi snippets" » "duc thang loi snippets", "duc hoang loi snippets", "duc hung loi snippets", "duc hang doi snippets", "duc tang loi 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: (((("duc hang loi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc hang loi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc hang loi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc hang loi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.