Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung dat moc snippets" » "dung va moc snippets", "dung tai moc snippets", "dung dat doc snippets", "dung dat nuoc snippets", "dung dat duoc 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: (((("dung dat moc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung dat moc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dat moc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dat moc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.