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