Perhaps you should try some spelling variations:
"trong thinh do snippets" » "trong tinh do snippets", "trong thanh do snippets", "trong kinh do snippets", "trong trinh do snippets", "trong chinh do snippets"
"hang java java snippets" » "hang 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: "((((\"trong thinh do snippets\") OR (\"hang java java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( trong thinh do snippets ) OR ( hang java java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("trong thinh do snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets"))*.