Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mang dau da snippets" » "hang dau da snippets", "xang dau da snippets", "nang dau da snippets", "mang dau va snippets", "mang dan da snippets", "mang dau ha 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 dau da 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 dau da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mang dau da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mang dau da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.