Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu am ca snippets" » "sieu am ca snippets", "hieu pham ca snippets", "thieu lam ca snippets", "hieu am cat snippets", "hieu nam ca snippets", "hieu am ma 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 am ca 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 am ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu am ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu am ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.