Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khao danh du snippets" » "cao danh du snippets", "han danh du snippets", "khau dan du snippets", "khao danh dau snippets", "khao danh tu snippets", "khao dinh du 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: (((("khao danh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khao danh du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khao danh du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khao danh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.