Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khung min ho snippets" » "khung mon ho snippets", "khong minh ho snippets", "phung minh ho snippets", "khung sin ho snippets", "khung bin ho snippets", "khung minh hoa 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: (((("khung min ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khung min ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khung min ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khung min ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.