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