Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"van dung dat slippers" » "van dong dat slippers", "xay dung dat slippers", "tin dung dat slippers", "van dung va slippers", "van dung tai slippers", "van dung dat slippery", "van dung dat 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 (\"van dung dat slippers\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( using java java snippets ) OR ( van dung dat slippers ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") OR ("van dung dat slippers"))) OR ("locating bug code snippets"))*.