Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vung re he snippets" » "vung kem he snippets", "vung gen he snippets", "vung ven he snippets", "vung ke he snippets", "vung te he 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 re he 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 re he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vung re he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vung re he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.