Perhaps you should try some spelling variations:
"dung giai chieu snippets" » "dung gioi thieu snippets", "dung gian hieu snippets", "dung gia hieu snippets", "duong giai chieu snippets", "dung giao chieu snippets", "dung giam chieu snippets"
"hang java java snippets" » "hang va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("dung giai chieu snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung giai chieu snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung giai chieu snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung giai chieu snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.