Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai dung cau snippets" » "hai duong cau snippets", "mai dung cau snippets", "hai dang cau snippets", "hai dung chau snippets", "hai dung cu snippets", "hai dung cac 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: (((("hai dung cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai dung cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai dung cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai dung cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.