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