Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi ta cao snippets" » "khi va cao snippets", "khi thai cao snippets", "khi tham cao snippets", "khi tao cao snippets", "khi tay cao snippets", "khi tai 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 ta 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 ta cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi ta cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi ta cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.