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