Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java code slippers" » "using data code slippers"
"van mo trinh snippets" » "van co trinh snippets", "van mo tinh snippets", "van tao trinh snippets", "van mao trinh snippets", "van do trinh snippets", "van ho trinh 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: (((("using java code slippers") OR ("van mo trinh snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( using java code slippers ) or ( van mo trinh snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code slippers") or ("van mo trinh snippets"))) or ("locating bugs code snippets"))*.