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"
"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 ("dong trong moi snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang java java snippets") OR ("dong trong moi snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hang java java snippets ) or ( dong trong moi snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang java java snippets") or ("dong trong moi snippets"))) or ("locating bug core snippets"))*.