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