Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai tra cuu snippets" » "hai trac cuu snippets", "thai tran cuu snippets", "phai trai cuu snippets", "hai tra cau snippets", "hai trau cua snippets", "hai trua cua 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 tra cuu 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 tra cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai tra cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai tra cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.