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