Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tao cong da snippets" » "trao cong da snippets", "cao cong da snippets", "vao cong da snippets", "tao cong dan snippets", "tao cong dac snippets", "tao cong dau 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 cong da 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 cong da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tao cong da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao cong da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.