Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc vi trac slippers" » "quoc va trac slippers", "quoc ve trac slippers", "quoc viet trac slippers", "quoc li trac slippers", "quoc hoi trac slippers", "quoc vi trac slippery", "quoc vi 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: (((("quoc vi 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: (((("quoc vi trac slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc vi trac slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc vi trac slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.