Perhaps you should try some spelling variations:
phuong doan » phuong loan, phuong hoang, huong dan
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh chua » tranh cua, trinh chuan, tranh chap
huong doan » huong dan, huong loan, phuong loan
hoc thieu » toc thieu, hoc hien
chua dong » cua dong, ha dong, huy dong

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh tranh chua dong ((huong doan) OR (phuong doan)) van ban~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh tranh chua dong ((huong doan) OR (phuong doan)) van ban*.