Perhaps you should try some spelling variations:
"trong lang son snippets" » "trong dang son snippets", "trong lan son snippets", "trong tang son snippets", "trong nang song snippets", "trong bang song snippets", "trong anh son snippets"
"dung java java snippets" » "dung va java snippets"
"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: "((((\"dung java java snippets\") OR (\"trong lang son snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung java java snippets ) OR ( trong lang son snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") OR ("trong lang son snippets"))) OR ("locating bug code snippets"))*.