Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngoc ha trac slippers" » "ngoc hai trac slippers", "ngoc hoa trac slippers", "ngoc lan trac slippers", "ngoc va trac slippers", "ngoc ha tran slippers", "ngoc ha trac slippery", "ngoc ha trac grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("ngoc ha trac slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ngoc ha trac slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngoc ha trac slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngoc ha trac slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.