Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu xuan le snippets" » "chu quang le snippets", "chuc quan le snippets", "thi xuan le snippets", "chu tuan le snippets", "chu xuan liem snippets", "chu xuan loi 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: (((("chu xuan le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu xuan le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu xuan le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu xuan le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.