Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
thanh toan » thanh hoa, thanh san, tinh toan
cua nhung » va nhung
manh toan » anh tuan, tinh toan
theo chu » theo chieu, cho chu, chao chu
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
chu van » cuu van, chu han

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 van - anh tang cua nhung cong ((manh toan) OR (thanh toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu van - anh tang cua nhung cong ((manh toan) OR (thanh toan)) cau*".