Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho han du snippets" » "kho khan du snippets", "kho tan du snippets", "khoa than du snippets", "kho han dau snippets", "kho van du snippets", "kho han tu 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: (((("kho han 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: (((("kho han du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho han du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho han du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.