Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dang quang do snippets" » "dang quang code snippets", "dung quang do snippets", "nang quan do snippets", "dang hung do snippets", "dang quang d snippets", "dang quang de snippets", "dang quang dong snippets"
"hang java java snippets" » "hang 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: (((("hang java java snippets") or ("dang quang do snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang java java snippets") OR ("dang quang do snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hang java java snippets ) or ( dang quang do snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang java java snippets") or ("dang quang do snippets"))) or ("locating bug core snippets"))*.