Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang hoi ve snippets" » "nang hoc ve snippets", "nang noi ve snippets", "nang ho ve snippets", "nang hoi va snippets", "nang moi ve 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: (((("nang hoi ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang hoi ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang hoi ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang hoi ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.