Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chuc quan le snippets" » "luc quan le snippets", "hoc quan le snippets", "chu quang le snippets", "chuc quang le snippets", "chuc quan ly snippets", "chuc quan li 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: (((("chuc quan le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chuc quan le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chuc quan le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chuc quan le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.