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