Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van binh mot snippets" » "van minh mot snippets", "van dinh mot snippets", "van linh mot snippets", "van dinh moi snippets", "van tich mot 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: (((("van binh mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van binh mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van binh mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van binh mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.