Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan anh cho snippets" » "pham anh cho snippets", "phan thanh cho snippets", "phan dang cho snippets", "phan danh cho snippets", "phan anh tho snippets", "phan anh co 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: (((("phan anh cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan anh cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan anh cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan anh cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.