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