Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran kiem e snippets" » "toan kiem e snippets", "trang kien e snippets", "trinh kiem e snippets", "tran kiem ke snippets", "tran diem e 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: (((("tran kiem e snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran kiem e snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran kiem e snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran kiem e snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.