Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java slippery" » "python using data slippery"
"phi van viet slippers" » "phi san viet slippers", "phi gian viet slippers", "phi tran viet slippers", "thi van viet slippers", "phi va viet slippers", "phi van viet grippers"

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

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