Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan trac du snippets" » "phan tap du snippets", "phan cac du snippets", "phan tan du snippets", "phan truc du snippets", "phan tac du snippets", "phan tra du 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 trac du 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 trac du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan trac du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan trac du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.