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