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