Perhaps you should try some spelling variations:
"dung theo chieu snippets" » "dung theo tieu snippets", "dung ho chieu snippets", "dung theo chu snippets", "sung theo chieu snippets", "vung theo chieu snippets", "luong theo 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 theo 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 theo chieu snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung theo chieu snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung theo chieu snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.