Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo phap » thi phap
phap sinh » phau sinh, phai sinh, phap tinh
hanh mang » nhanh mang, hanh trang, nhanh lang
cua nhung » va nhung
van toan » van tuan, van tan, van thanh
dan toan » dan than, manh toan, xuan toan
lan anh » van anh, tuan anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo phap sinh - ((hanh mang) or (lan anh)) cua nhung cong ((van toan) or (dan toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo phap sinh - ((hanh mang) OR (lan anh)) cua nhung cong ((van toan) OR (dan toan)) cao.
• Adding a wildcard symbol may retrieve word variants: theo phap sinh - ((hanh mang) or (lan anh)) cua nhung cong ((van toan) or (dan toan)) cao*.