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