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