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
tich toan » tinh toan, tich than, trinh toan
hach toan » thanh toan, manh toan
chi xanh » chi anh, chi danh, chi hanh
tac toan » tap toan, tam toan, tac thanh
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 (tich toan))) or (hach toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - hanh trang cua nhung cong ((((tac toan) OR (tich 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 (tich toan))) or (hach toan)) cau".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - hanh trang cua nhung cong ((((tac toan) OR (tich toan))) or (hach toan)) cau*.