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