Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trang » thanh trung, canh tranh, hanh trinh
trang cua » tranh cua, tang cua, trung cua
cua nhung » va nhung
hach toan » thanh toan, manh toan
chi xanh » chi anh, chi danh, chi hanh
tac toan » tap toan, tam toan, tich toan
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - hanh trang cua nhung cong ((tac toan) OR (hach toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - hanh trang cua nhung cong ((tac toan) OR (hach toan)) cau".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - hanh trang cua nhung cong ((tac toan) OR (hach toan)) cau*.