Perhaps you should try some spelling variations:
vuong doanh » trong doanh, dung doanh, von doanh
hanh tranh » canh tranh, hanh trinh, hanh trang
tuan hoang » tran hoang, xuan hoang, luan hoan
quan hoang » luan hoan
doanh phan » doanh nhan, doan phan, doanh thanh
hoc thieu » toc thieu, hoc hien
ho chieu » theo chieu, doi chieu, mot chieu
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 chieu) or (hoc thieu)) tinh - hanh tranh ((tuan hoang) OR (quan hoang)) vuong doanh phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - hanh tranh ((tuan hoang) OR (quan hoang)) vuong doanh phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) tinh - hanh tranh ((tuan hoang) OR (quan hoang)) vuong doanh phan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) tinh - hanh tranh ((tuan hoang) OR (quan hoang)) vuong doanh phan cau*.