Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham ke cac snippets" » "pham ky cac snippets", "pham le cac snippets", "phan ke cac snippets", "pham ke cau snippets", "pham ve cac snippets", "pham de cac 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 ke cac 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 ke cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham ke cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham ke cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.