Perhaps you should try some spelling variations:
thieu quang » thien quan, trien quang, hieu quan
phuong doan » phuong loan, phuong hoang, huong dan
hieu quang » hieu quan, hieu qua, diep quang
phuong dan » phuong danh, huong dan, phuong lan
tranh cua » doanh cua, manh cua
cua nhung » va nhung
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu quang) or (thieu quang)) - canh tranh cua nhung ((phuong dan) OR (phuong doan)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu quang) OR (thieu quang)) - canh tranh cua nhung ((phuong dan) OR (phuong doan)) phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu quang) or (thieu quang)) - canh tranh cua nhung ((phuong dan) OR (phuong doan)) phan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu quang) or (thieu quang)) - canh tranh cua nhung ((phuong dan) OR (phuong doan)) phan cau*.