Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan dieu hoa snippets" » "dang dieu hoa snippets", "doan dieu hoa snippets", "da dieu hoa snippets", "dan dien hoa snippets", "dan tieu hoa snippets", "dan hieu hoa 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: (((("dan dieu hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan dieu hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan dieu hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan dieu hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.