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