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