Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java slippers" » "python using data slippers", "python using java slippery"
"va trinh tu grippers" » "van trinh tu grippers", "va tinh tu grippers", "lap trinh tu grippers", "va trinh ky grippers", "va trinh do grippers"

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

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