Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao duc te snippets" » "giao duc te snippets", "tao duoc te snippets", "dao duc tre snippets", "dao duc tu snippets", "dao duc tien 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: (((("dao duc te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao duc te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao duc te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao duc te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.