Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac phan che snippets" » "cac nhan che snippets", "cao phan che snippets", "cap phan che snippets", "cac han che snippets", "cac phap che snippets", "cac 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: (((("cac 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: (((("cac phan che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac phan che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac phan che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.