Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu khich le snippets" » "chu thich le snippets", "thu tich le snippets", "thu kinh le snippets", "thu thinh le snippets", "thu dich le 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: (((("thu khich 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: (((("thu khich le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu khich le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu khich le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.