Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngan hang le snippets" » "ngan hoang le snippets", "ngan tang le snippets", "ngan hang ly snippets", "nganh hang le snippets", "nhan hang le 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: (((("ngan hang le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ngan hang le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngan hang le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngan hang le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.