Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh bac cao snippets" » "doanh bac cao snippets", "danh bat cao snippets", "dan bac cao snippets", "danh bao cao snippets", "danh bac can snippets", "danh bac cau 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 bac cao 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 bac cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh bac cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh bac cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.