Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tao su cuong snippets" » "tao su tuong snippets", "tao su cong snippets", "tao su luong snippets", "tao sau cuong snippets", "tao cu cuong snippets", "cao su cuong 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: (((("python using java snippets") or ("tao su cuong snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("tao su cuong snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( tao su cuong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("tao su cuong snippets"))) or ("locating bug code snippets"))*.