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