Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham sach c snippets" » "pham anh c snippets", "nam sach c snippets", "pham hanh c snippets", "pham sach y snippets", "pham sach 2 snippets", "pham sach cap 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 sach c 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 sach c snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham sach c snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham sach c snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.