Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoang long cau snippets" » "hoang long code snippets", "hoang vuong cau snippets", "hoang trong cau snippets", "thang long cau snippets", "hoang cong cau snippets", "hoang song cau snippets", "hoang luong cac snippets"
"dung java java snippets" » "dung 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: (((("hoang long cau snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoang long cau snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoang long cau snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoang long cau snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.