Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam phan che snippets" » "dam phan che snippets", "nam phan che snippets", "lam nhan che snippets", "lam han che snippets", "lam phap che snippets", "lam phan thi 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: (((("lam phan che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lam phan che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam phan che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam phan che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.