Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong trong moi snippets" » "dong trong code snippets", "duong trong moi snippets", "dung trong moi snippets", "cong trong moi snippets", "dong trong doi snippets", "dong trong mot snippets", "dong trong thoi snippets"
"dang java java snippets" » "dang 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: (((("dang java java snippets") or ("dong trong moi snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang java java snippets") OR ("dong trong moi snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dang java java snippets ) or ( dong trong moi snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang java java snippets") or ("dong trong moi snippets"))) or ("locating bug core snippets"))*.