Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"manh dung mo snippets" » "manh hung mo snippets", "manh tung mo snippets", "anh dung mo snippets", "manh dung co snippets", "manh dung cho snippets", "manh dung von 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: (((("manh dung 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: (((("manh dung mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( manh dung mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("manh dung mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.