Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xac dau noi snippets" » "tac dau noi snippets", "xang dau noi snippets", "sach dau noi snippets", "xac cau noi snippets", "xac dang noi snippets", "xac dau cuoi 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: (((("xac dau noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xac dau noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xac dau noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xac dau noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.