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