Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khang cua le snippets" » "hang cua le snippets", "khan cua le snippets", "khang cu le snippets", "khang cua te snippets", "khang cua he snippets", "khang cua ly 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: (((("khang cua 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: (((("khang cua le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khang cua le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khang cua le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.