Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao hoc trac slippers" » "cao hoi trac slippers", "cao hoc truc slippers", "cao hoc thuc slippers", "co hoc trac slippers", "cho hoc trac slippers", "chat hoc trac slippers", "cao hoc trac slippery", "cao hoc 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: (((("cao hoc 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: (((("cao hoc trac slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao hoc trac slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao hoc trac slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.