Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham cay cao snippets" » "pham xay cao snippets", "pham ca cao snippets", "pham can cao snippets", "pham chay cao snippets", "pham cay co snippets", "pham tay 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: (((("pham cay 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: (((("pham cay cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham cay cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham cay cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.