Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kiem ta con snippets" » "kiem tra con snippets", "kiem va con snippets", "kiem toan con snippets", "kiem tao con snippets", "kiem ga con 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 ta con 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 ta con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kiem ta con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kiem ta con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.