Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh tu che snippets" » "anh tu che snippets", "hanh tu che snippets", "doanh thu che snippets", "danh tu chu snippets", "danh tu chi snippets", "danh ty che 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: (((("danh tu che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh tu che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh tu che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh tu che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.