Perhaps you should try some spelling variations:
"dung cac chat snippets" » "dung cac code snippets", "luong cac chat snippets", "dung cho chat snippets", "dung tai chat snippets", "dung cao chat snippets", "dung cac thuat snippets", "dung cac nha snippets"
"locating bug core snippets" » "locating bug code snippets"
"data using java snippets" » "data using data snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("data using java snippets") OR ("dung cac chat snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"data using java snippets\") OR (\"dung cac chat snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( data using java snippets ) OR ( dung cac chat snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data using java snippets") OR ("dung cac chat snippets"))) OR ("locating bug core snippets"))*.