Perhaps you should try some spelling variations:
"python using java slippery" » "python using data slippery"
"p trinh iot slippers" » "p trinh do slippers", "p trinh hoa slippers", "p trinh vat slippers", "n trinh iot slippers", "lap trinh iot slippers", "co trinh iot slippers", "p trinh iot 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("p trinh iot slippers") OR ("python using java slippery"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( p trinh iot slippers ) or ( python using java slippery ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("p trinh iot slippers") or ("python using java slippery"))) or ("locating bug code snippets"))*.