Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing data java snippets"
"hai duong raw snippets" » "dai cuong raw snippets", "hai phong raw snippets", "hai duong ra snippets", "hai duong va snippets", "hai duong van 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 data java snippets") or ("hai duong raw snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using data java snippets") OR ("hai duong raw snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using data java snippets ) or ( hai duong raw snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using data java snippets") or ("hai duong raw snippets"))) or ("locating bug core snippets"))*.