Perhaps you should try some spelling variations:
phuong doan » phuong loan, phuong hoang, huong dan
hanh tranh » canh tranh, hanh trinh, hanh trang
phuong dan » phuong danh, huong dan, phuong lan
hoc thieu » hoc hien
tranh cua » doanh cua, manh cua
cua nhung » va nhung
toan cao » toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) tinh - hanh tranh cua nhung ((phuong dan) OR (phuong doan)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (toc thieu)) tinh - hanh tranh cua nhung ((phuong dan) OR (phuong doan)) toan cao~".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) tinh - hanh tranh cua nhung ((phuong dan) OR (phuong doan)) toan cao*.