Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bai viet noi snippets" » "mai viet noi snippets", "tai viet noi snippets", "bac viet noi snippets", "bai biet noi snippets", "bai viet doi snippets", "bai viet voi 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: (((("bai viet 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: (((("bai viet noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bai viet noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bai viet noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.