Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham tinh da snippets" » "pham minh da snippets", "pham dinh da snippets", "pham vinh da snippets", "pham tinh va snippets", "pham tinh gia snippets", "pham tinh lao 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 tinh da 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 tinh da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham tinh da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham tinh da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.