Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vong doi de snippets" » "trong doi de snippets", "huong doi de snippets", "dung doi de snippets", "vong doi deu snippets", "vong dai de snippets", "vong moi de 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: (((("vong doi de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vong doi de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vong doi de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vong doi de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.