Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"luan danh cuc snippets" » "luan thanh cuc snippets", "luan van cuc snippets", "luan nang cuc snippets", "luan danh muc snippets", "luan doanh cuoc snippets", "luan doanh cua snippets"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs code 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 code snippets\") OR (\"luan danh cuc snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( using java code snippets ) OR ( luan danh cuc snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") OR ("luan danh cuc snippets"))) OR ("locating bug code snippets"))*.