Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cuon danh cac snippets" » "cuon danh code snippets", "cuong danh cac snippets", "cuoi dan cac snippets", "cuon sach cac snippets", "cuon dinh cac snippets", "cuon danh ca snippets", "cuon hanh cac snippets"
"duong java java snippets" » "duong va java snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("duong java java snippets") or ("cuon danh cac snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong java java snippets") OR ("cuon danh cac snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( duong java java snippets ) or ( cuon danh cac snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong java java snippets") or ("cuon danh cac snippets"))) or ("locating bug core snippets"))*.