Perhaps you should try some spelling variations:
"trinh thi oanh snippets" » "trinh tai oanh snippets", "trinh thiet oanh snippets", "trinh tu oanh snippets", "trinh thi hanh snippets", "trinh thi anh snippets", "trinh thi thanh snippets", "trinh thi oanh slippers"
"dung va java snippets" » "dung java java snippets", "dung va java slippers"
"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: (((("dung va java snippets") or ("trinh thi oanh snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung va java snippets") OR ("trinh thi oanh snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung va java snippets ) or ( trinh thi oanh snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung va java snippets") or ("trinh thi oanh snippets"))) or ("locating bug code snippets"))*.