Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java core snippets" » "using data core snippets"
"dung cua doc snippets" » "dung luan doc snippets", "dung cho doc snippets", "dung cua duoc snippets", "dung cua duc snippets", "dung cua hoc 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 core snippets") or ("dung cua doc snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java core snippets") OR ("dung cua doc snippets"))) OR ("locating bugs code snippets"))*.
• Removing quotes may allow a broader search: (((( using java core snippets ) or ( dung cua doc snippets ))) or ( locating bugs code snippets ))*.