Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"moi nhat da snippets" » "moi bat da snippets", "hoi nhap da snippets", "moi nha da snippets", "moi nhat de snippets", "moi nhat 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: (((("moi nhat 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: (((("moi nhat da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( moi nhat da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("moi nhat da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.