Perhaps you should try some spelling variations:
"dung hoc chieu snippets" » "dung hoc code snippets", "dung hoc thieu snippets", "dung ho chieu snippets", "dung hoc hien snippets", "dong hoc chieu snippets", "dung thuoc chieu snippets", "trung hoc chieu snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung using java snippets" » "dung ung java snippets", "dung sinh java snippets", "dung uong java snippets", "dung using data snippets"

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

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