Perhaps you should try some spelling variations:
"vu trinh toan slippery" » "vu tinh toan slippery", "vu thanh toan slippery", "vu trinh han slippery", "va trinh toan slippery", "qua trinh toan slippery", "quy trinh toan slippery", "vu trinh toan slippers"
"using java java snippets" » "using data java snippets", "using java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("vu trinh toan slippery") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vu trinh toan slippery") OR ("using java java snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( vu trinh toan slippery ) or ( using java java snippets ))) or ( locating bug code snippets ))*.