Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai dung du snippets" » "hai duong du snippets", "mai dung du snippets", "hai dang du snippets", "hai dung de snippets", "hai dung cu snippets", "hai dung cua 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 du 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 du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai dung du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai dung du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.