Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"may trinh van slippers" » "may tinh van slippers", "lap trinh van slippers", "quy trinh van slippers", "may trinh han slippers", "may trinh quan slippers", "may trinh toan slippers", "may trinh van slippery", "may 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"using java java snippets\") OR (\"may trinh van slippers\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( using java java snippets ) OR ( may trinh van slippers ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") OR ("may trinh van slippers"))) OR ("locating bug code snippets"))*.