Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham duoc co snippets" » "pham duc co snippets", "phan duoc co snippets", "pham thuoc co snippets", "pham duoc hoc snippets", "pham duong co snippets", "pham duoc hoi 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 duoc co 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 duoc co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham duoc co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham duoc co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.