Perhaps you should try some spelling variations:
tranh cua » doanh cua, manh cua
duong van » duong va, luong va, dang van
cua tinh » cua sinh, va tinh, ha tinh
cua bang » chua bang, cua ban, cua dang
song dan » song danh, song van, cong dan
phan dau » phan tu, hang dau
toan cau » toan cao, toan ban, toan tap
ho cua » hoc cua, hoi cua, hoa cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho cua tinh - canh tranh cua bang ((song dan) or (duong van)) ((phan dau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho cua tinh - canh tranh cua bang ((song dan) OR (duong van)) ((phan dau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: ho cua tinh - canh tranh cua bang ((song dan) or (duong van)) ((phan dau) or (toan cau))*.