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