Perhaps you should try some spelling variations:
"python using java slippery" » "python using data slippery"
"dang tinh do slippers" » "dang dinh do slippers", "dang sinh do slippers", "dang vinh do slippers", "dang trinh do slippers", "dang tinh doi slippers", "dang tinh da slippers", "dang tinh do 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: (((("dang tinh do slippers") or ("python using java slippery"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang tinh do slippers") OR ("python using java slippery"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang tinh do slippers ) or ( python using java slippery ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang tinh do slippers") or ("python using java slippery"))) or ("locating bug code snippets"))*.