Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam trung do snippets" » "nam trong do snippets", "tai trung do snippets", "ba trung do snippets", "nam trung bo snippets", "nam trung co snippets", "nam trung du 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: (((("nam trung do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nam trung do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam trung do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam trung do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.