Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mang nam cao snippets" » "dang nam cao snippets", "hang nam cao snippets", "mang lam cao snippets", "mang nam sao snippets", "mang nam giao 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: (((("mang nam 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: (((("mang nam cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mang nam cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mang nam cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.