Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai cong cac snippets" » "thai cong cac snippets", "tai cong cac snippets", "hai long cac snippets", "hai cuong cac snippets", "hai cong tac snippets", "hai cong cau 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: (((("hai cong cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai cong cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai cong cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai cong cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.