Perhaps you should try some spelling variations:
va phuong » va thuong, cac phuong
duong van » duong va, luong va, dang van
thanh tai » thanh hai, thanh toan, doanh tai
cua tinh » va tinh, ha tinh, hoa tinh
cua sinh » hoa sinh, va sinh
tranh va » tranh van, trang va, trinh va
hong van » hoang van, thong van, phong van

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) OR (cua sinh)) - canh tranh va phuong ((duong van) or (hong van)) thanh tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((cua tinh) OR (cua sinh)) - canh tranh va phuong ((duong van) OR (hong van)) thanh tai*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((cua tinh) OR (cua sinh)) - canh tranh va phuong ((duong van) or (hong van)) thanh tai*".