Perhaps you should try some spelling variations:
"quang trinh java snippets" » "quang thinh java snippets", "quang ninh java snippets", "quang binh java snippets", "quang trinh java slippers"
"dung cao dang snippets" » "duong cao dang snippets", "dung cho dang snippets", "dung co dang snippets", "dung cao dang slippers", "dung cao dan snippets", "dung cao dong snippets", "dung cao nang snippets"
"locating bug code snippets" » "locating bug code slippers", "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: (((("quang trinh java snippets") or ("dung cao dang snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quang trinh java snippets") OR ("dung cao dang snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quang trinh java snippets ) or ( dung cao dang snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quang trinh java snippets") or ("dung cao dang snippets"))) or ("locating bug code snippets"))*.