Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai duong ca snippets" » "dai cuong ca snippets", "hai duong ca snippets", "dai luong ca snippets", "dai duong cua snippets", "dai duong cac snippets", "dai duong cao 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 duong ca 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 duong ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai duong ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai duong ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.