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