Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh co mong snippets" » "danh cho mong snippets", "doanh co mong snippets", "anh co mong snippets", "danh co dong snippets", "danh ca mong snippets", "danh co tong 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 co mong 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 co mong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh co mong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh co mong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.