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