Perhaps you should try some spelling variations:
dmanh toan » thanh toan, minh toan, manh tuan
hanh tang » hanh trang, anh tang, hanh mang
dang cong » dung cong
manh toan » thanh toan, anh tuan, tinh toan
chu bang » thu bang, chuc nang, chu quang
thu hang » thi hang, thuc hanh, thu huong
tang va » trang va, tang van, thang va
va dang » van dang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu bang) or (thu hang)) - hanh tang va dang cong ((dmanh toan) or (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu bang) OR (thu hang)) - hanh tang va dang cong ((dmanh toan) OR (manh toan)) cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chu bang) or (thu hang)) - hanh tang va dang cong ((dmanh toan) or (manh toan)) cau*.