Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu bat coc snippets" » "dieu bat coc snippets", "hieu bai coc snippets", "hieu luat coc snippets", "hieu bat buoc 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: (((("hieu bat 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: (((("hieu bat coc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu bat coc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu bat coc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.