Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi tao cao snippets" » "khi nao cao snippets", "khi ta cao snippets", "thi thao cao snippets", "khi bao cao snippets", "khi toan cao 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: (((("khi tao cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khi tao cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi tao cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi tao cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.