Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu vung doi snippets" » "huu tung doi snippets", "huu dung doi snippets", "hau vung doi snippets", "huu vong doi snippets", "huu vung dong 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: (((("huu vung doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huu vung doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu vung doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu vung doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.