Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"viet thuc te snippets" » "viet duc te snippets", "viet tu te snippets", "viet theo te snippets", "viet thuc ve snippets", "viet thuc tien snippets", "viet thuc tin 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: (((("viet thuc te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("viet thuc te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( viet thuc te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("viet thuc te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.