Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach ngon mo snippets" » "sach ngan mo snippets", "danh ngon mo snippets", "canh ngon mo snippets", "sach ngon co snippets", "sach ngon keo snippets", "sach ngon doc 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: (((("sach ngon mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sach ngon mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach ngon mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach ngon mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.