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