Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vung van chi snippets" » "vung va chi snippets", "dung van chi snippets", "vung ven chi snippets", "vung van chien snippets", "vung luan chi snippets", "vung van chat 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 van chi 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 van chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vung van chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vung van chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.