Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tao lap nghe snippets" » "tao cap nghe snippets", "tao lap nghien snippets", "tao lap nghiep snippets", "thao lap nghe snippets", "tai lap nghe snippets", "tan lap nghe 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 lap nghe 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 lap nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tao lap nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao lap nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.