Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh ma di snippets" » "anh ma di snippets", "danh ca di snippets", "hanh ma di snippets", "danh pa di snippets", "danh da di snippets", "danh mo di 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: (((("danh ma di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh ma di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh ma di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh ma di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.