Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoang van cac snippets" » "hoang van code snippets", "hang va cac snippets", "hoang van hac snippets", "hoang van cau snippets", "hoang van bac 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 ("hoang van cac snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data using java snippets") OR ("hoang van cac snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( data using java snippets ) or ( hoang van cac snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data using java snippets") or ("hoang van cac snippets"))) or ("locating bug core snippets"))*.