Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tao khoi con snippets" » "tao hoi con snippets", "thao khoa con snippets", "lao khoa con snippets", "tao khi con snippets", "tao khoe con snippets", "tao khoi can 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: (((("tao khoi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tao khoi con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tao khoi con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao khoi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.