Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kham va cao snippets" » "pham va cao snippets", "kham da cao snippets", "cham va cao snippets", "kham va cac snippets", "kham va co snippets", "kham va dao 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: (((("kham va 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: (((("kham va cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kham va cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kham va cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.