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