Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham chi cac snippets" » "pham thi cac snippets", "tham chi cac snippets", "pham chieu cac snippets", "pham cho cac snippets", "pham chi cuc snippets", "pham chon 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 chi 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 chi cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham chi cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham chi cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.