Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets", "using java code slippers"
"van tuan dat snippets" » "van quan dat snippets", "van ban dat snippets", "anh tuan dat snippets", "van tan dat snippets", "van tuat dat snippets", "van thanh dat snippets", "van tuan dat slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using java code snippets") or ("van tuan dat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("van tuan dat snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( van tuan dat snippets ))) or ( locating bug code snippets ))*.