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