Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai long cho snippets" » "hai phong cho snippets", "hai duong cho snippets", "hai luong cho snippets", "hai dong cho snippets", "hai rong cho 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 long cho 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 long cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai long cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai long cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.